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2024

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January

Probiotics in Hot Tea?

January 05, 2024

Some teas now include probiotics, but are probiotics likely to remain viable if steeped in hot water? Find out in the What to Consider When Using section of our Probiotic Supplements Review. Also see our Top Picks among probiotic supplements.

Vitamin D For Cough & Colds?

January 05, 2024

Does taking vitamin D prevent upper respiratory infections, including colds and coughs, in older people? Find out what a recent study showed in our Vitamin D Review, which includes our Top Picks for vitamin D.

Also see: Do any supplements help prevent or treat a cold?

Vitamin K2 & Breast Cancer

January 05, 2024

Does supplementing with vitamin K2, which can be derived from fermented soy (natto), increase the risk of breast cancer? Find out in the Concerns and Cautions section of our Vitamin K Supplements Review, which includes our Top Picks for vitamin K.

Also see: Are there vitamins or supplements that can reduce my risk of breast cancer? Do any increase cancer risk?

PEA & Thyroid Function

January 05, 2024

Does taking PEA (palmitoylethanolamide) affect thyroid function or interact with thyroid medication such as Synthroid (levothyroxine)? Find out in the Comments section of our article about PEA.

Also see our article about food and supplement interactions with levothyroxine.

Getting C15:0 Fatty Acid from Food?

January 05, 2024

Can a person get a clinically relevant dose of C15:0 fatty acid (in the supplement fatty15 promoted for hair, nails, sleep and aging) from food? Find out in the Getting C15:0 fatty acid from food section of our article about C15:0 fatty acid.

How to Identify Produce That's Coated?

January 09, 2024

Find out how you can identify fruits and vegetables coated with Edipeel when shopping for produce in our article about produce “washes” and edible coatings.

Xylitol and Blood Sugar

January 09, 2024

Does taking xylitol, a low-calorie sweetener, affect blood sugar levels? Find out in the Xylitol section of our article about sweeteners and other sugar substitutes.

Ceramides and Blood Pressure?

January 09, 2024

Does supplementing with phytoceramides (“plant” ceramides), which are promoted for hydrating and plumping the skin, increase blood pressure? Find out in the Safety and Side Effects section of our article about phytoceramides.

Probiotic for Gout?

January 09, 2024

Does supplementing with a probiotic reduce gout flares? Find out in the What They Do section of our Probiotic Supplements Review, which includes our Top Picks among probiotic supplements.

Also see: Which supplements and foods help with gout and which may worsen it?

High-Dose Fish Oil for Heart Attack Recovery?

January 09, 2024

During recovery from heart attack, does high-dose fish oil prevent another heart attack, heart failure, or death? Find out what a recent study showed in the Heart Disease and Stroke section of our Fish Oil Supplements Review. Also see our Top Picks for fish oil.

BPA & Phthalates in Canned Fish?

January 09, 2024

Plasticizers such as bisphenol A (BPA) and phthalates can leach into food from packaging such as cans and foil pouches. How big of a problem is this in canned tuna and other packaged fish? See what tests by an independent group showed in the Quality Concerns section of our Tuna, Salmon, Sardines & Herring Review. Also see our Top Picks for canned tuna and other packaged fish.

Oats vs Supplement for Cholesterol?

January 09, 2024

Can eating oats every day reduce total and LDL cholesterol as much as taking a phytosterol/stanol supplement, like Cholestoff? Find out in our Oat Cereals Review. Also see our Top Picks among oat cereals, including steel-cut, rolled, and instant oats, and oat bran.

Also learn about red yeast rice for lowering cholesterol and our Top Pick among such supplements.

ConsumerLab Finding Prompts Recall

January 12, 2024

A supplement for memory and brain function that ConsumerLab.com recently reported to contain only 10% of its listed ingredient is being recalled by its distributor, along with a similar product. For details, see the Update in the Phosphatidylserine Supplements Review.

Comparison of Pine Bark Extracts

January 12, 2024

Supplements containing pine bark extracts, such as Pycnogenol, vary significantly in cost, mainly due to the type of pine bark used. Find out if the source matters, and what to consider when selecting a pine bark extract supplement, in our article about Pycnogenol and other pine bark extracts.

Pricey Toothpaste for Gum Health?

January 12, 2024

Tartar Control Fluoride Toothpaste by Smileactives is promoted as “supporting healthy gums” but is it worth $36 per tube? Find out in the Preventing bleeding gums section of our article about toothpastes and other dental products, which includes our Top Picks among products for bleeding gums, preventing cavities, desensitization, dry mouth, and bad breath.

Shilajit for Collagen and Bone?

January 12, 2024

Does taking shilajit increase collagen production or bone density? Find out in our article about the health benefits of shilajit.

How to Take C15:0 Fatty Acid

January 12, 2024

Should C15:0 fatty acid (in fatty15, which is promoted for improving hair, skin, and sleep and for slowing aging) be taken on an empty stomach or with food? Find out in the How to take section of our article about C15:0 fatty acid.

Also, learn whether C15:0 fatty acid is "essential," as some claim.

L-Theanine for Fatigue?

January 12, 2024

Did drinking a beverage containing L-theanine, with or without CBD, reduce fatigue? See what a recent study showed in the Stress, sleep and cognition section of our L-Theanine Review, which includes our Top Picks for L-theanine.

Also see: Which supplements help to improve energy and decrease fatigue?

Fish Oil Plus Statins?

January 16, 2024

Does adding high-dose fish oil to therapy with statins slow the progression of coronary plaque? See what a new study found in the Taking with Statins section of our Fish, Krill, and Algal Oil Supplements Review. Also see our Top Picks among fish oil supplements.

Dark Chocolate for Focus?

January 16, 2024

Did eating dark chocolate improve attention in a recent study? Find out in the Memory and Cognition section of our Dark Chocolates & Cocoa Review, which includes our Top Picks among dark chocolate bars and cocoa products.

Also see: Do any supplements, foods or lifestyle modifications help with brain function, like memory and cognition?

A Better Ashwagandha Extract?

January 16, 2024

A recently published study suggested that a particular ashwagandha extract may be better than regular extract at raising levels of ashwagandha compounds in the blood. For details, see the ConsumerTips section of our Ashwagandha Supplements Review. Also see our Top Picks for ashwagandha.

Trigonelline?

January 16, 2024

Fenugreek contains trigonelline, a derivative of niacin. Find out what potential concerns, as well as health benefits, have been suggested for this compound in our article about fenugreek.

Lysine for Sleep?

January 16, 2024

Does taking lysine improve sleep? Find out in the What It Does section of our Lysine Supplements Review, which includes our Top Picks for L-lysine.

Also see: Which supplements and lifestyle changes improve sleep, and which cause insomnia?

Premen-Calm for PMS?

January 16, 2024

Does taking Premen-Calm supplement relieve symptoms of PMS? Find out in our article about supplements for PMS.

How to Store Protein Powder

January 19, 2024

Learn how to properly store protein powders in the ConsumerTips section of our Protein Supplements Review, which includes our Top Picks among protein powders.

Protein Powder Allergy?

January 19, 2024

It is possible to be allergic to a protein powder, and some potential allergens need not be disclosed as allergens on labels. Learn more in the Cautions and Concerns section of our Protein Powders & Shakes Review.

Pycnogenol for Hearts and Eyes?

January 19, 2024

We answered the following questions in our article about Pycnogenol and pine bark extracts:

Does Pycnogenol help control coronary artery calcification?
Is Pycnogenol beneficial for glaucoma?

Risks with Plant-Based Milks for Young Children

January 19, 2024

Learn why young children should not exclusively drink plant-based milk instead of dairy milk in the Concerns and Cautions section of our Plant-Based Milk Review, which includes our Top Picks among plant-based milks.

Hyaluronic Acid for Joint Pain?

January 23, 2024

Did taking hyaluronic acid reduce pain and improve function in people with knee pain in a recent study? Find out in the Hyaluronic acid section of our Joint Health Supplements Review. Also see our Top Picks among supplements for joints.

Melatonin for Brown Patches?

January 23, 2024

Can melatonin lighten brown patches on the face? Find out what a recent study showed in our Melatonin Supplements Review, which includes our Top Picks for melatonin.

Chamomile and Bleeding Risk?

January 23, 2024

Does drinking chamomile tea increase bleeding risk? Find out in the chamomile section of our article about supplements for sleep.

Best Colostrum?

January 23, 2024

Although we have not yet tested colostrum products, we’ve identified a top choice based on key criteria in our article about bovine colostrum supplements.

Multivitamin for Memory?

January 23, 2024

Did taking a daily multivitamin improve memory in older people in a large, recent study? The answer is both yes and no, as we explain in the What It Does section of our Multivitamins Review, which includes our Top Picks among multis – one of which is very similar to the product studied.

Is Protein Powder Ultra-Processed?

January 23, 2024

All protein powders can be considered ultra-processed food, which has pros and cons, as discussed in our Protein Powders Review. Also see our Top Picks among protein powders and shakes.

Is Manuka Honey Safe?

January 23, 2024

Concerns have been raised that a compound in manuka honey might increase the risk of cancer, but is this true? See what research suggests in our article about manuka honey.

Help for Stressed Dogs?

January 25, 2024

Does CBD reduce stress in dogs during car rides? See what a recent study showed in our CBD Review, and see our Top Picks among products for pets.

Soak Your Beans and Chickpeas!

January 26, 2024

It's important to soak dried beans and other legumes to reduce levels of two anti-nutrients: phytate and lectins. Find out how to reduce risk in our article about preparing dried beans to reduce phytate and lectins.

BPA in Protein Powder?

January 26, 2024

Protein powders can absorb BPA (an endocrine disruptor) from plastic containers. Learn how to avoid BPA in the Quality Concerns section of our Protein Supplements Review.

Pesticides in Olive Oil?

January 26, 2024

How big a risk is pesticide contamination in extra virgin olive oils? See what recent study found in the Quality Concerns section of our Extra Virgin Olive Review. Also see our Top Picks for olive oil.

Licorice & Blood Pressure

January 26, 2024

Eating black licorice, or drinking tea that contains it, can increase blood pressure and cause heart issues. Get the latest details in our article about licorice.

Alkaline Water for Kidney Stones?

January 26, 2024

People who have had kidney stones may be advised to consume foods and supplements that alkalize their urine. Find out if “alkaline water” might help in our article about supplements, foods, and kidney stone risk.

Green Tea Interaction With Medicine

January 26, 2024

Drinking green tea may significantly affect blood levels of a common beta-blocker, as well as statins, blood-thinners, and thyroid medication. Be aware of these interactions. See the Concerns and Cautions section of our Green Tea Review.

Top Pick Extra Virgin Olive Oil Renamed

January 30, 2024

In case you've been trying to find our Top Pick EVOO for "high polyphenols," we learned that the name has changed. For details, see the Top Picks section of our Extra Virgin Olive Oil Review.

Cranberry for Recurrent UTIs?

January 30, 2024

Did taking cranberry extract for one year reduce recurrent urinary tract infections (UTIs)? See what a recent study found in our Cranberry Juices and Supplements Review. Also see our Top Picks among cranberry juices and pills.

PQQ for Muscle Strength?

January 30, 2024

Did taking PQQ (pyrroloquinoline quinone) increase muscle strength or exercise endurance among older men and women? See what a new study found in our PQQ Supplements Review. Also learn if PQQ helps with memory and cognition or has heart health benefits, and see our Top Picks among PQQ supplements.

Toothpaste Flavor Causes Sensitivity

January 30, 2024

Learn which flavoring ingredient in toothpaste can cause gum sensitivity in our article about toothpaste and other dental products.

Ulcerative Colitis

January 30, 2024

Find out if drinking coconut water or taking psyllium helped people with active ulcerative colitis in recent studies. Also see our Top Picks among coconut waters and psyllium supplements.

February

Dirtiest Fruits

February 02, 2024

Find out which 12 fruits and vegetables have the most pesticides even after washing, and what to do about it, in our article about cleaning produce.

Avoid Counterfeits: 4 Brands Added

February 02, 2024

Counterfeit versions of supplements have been sold on sites such as Amazon. Learn on how to safely purchase products online for 62 brands. We recently added information for Metamucil, Emergen-C, Dr. Mercola, and Healthy Origins.

Cholestoff Plus vs Cholestoff Complete

February 02, 2024

What are the differences between these formulas, and is one more effective for lowering cholesterol? Find out in our Cholesterol-Lowering Supplements Review, which includes our Top Picks among products.

Thiamin for Fibromyalgia?

February 02, 2024

Can taking thiamin reduce symptoms of fibromyalgia? Find out in the Thiamin section of our B Vitamin Supplements Review. Also see our Top Picks among B vitamins.

Also see: Can any supplements improve or worsen symptoms of fibromyalgia?

Take a Probiotic When Taking Aspirin?

February 02, 2024

Can taking a probiotic reduce aspirin-induced damage to the lining of the stomach? Find out what a recent study showed in the What It Does section of our Probiotics Supplements Review.

Probiotic for IBS?

February 02, 2024

Did a multi-strain probiotic improve symptoms of irritable bowel syndrome in a recent study? Find out in the Symptoms of IBS section of our Probiotics Supplements Review. Also find out which product containing this specific multi-strain probiotic was tested and Approved by ConsumerLab.

Lower Blood Sugar with Aloe?

February 02, 2024

Does drinking aloe juice right after a high-fat meal reduce spikes in blood sugar and blood fat levels? Find out what a recent study showed in the What It Does section of our Aloe Vera Supplements Review, which includes our Top Picks for aloe.

Coffee for Brain Health?

February 06, 2024

Find out if drinking coffee improves cognitive function and memory, affects the risk of Alzheimer's disease, and more in our article about the brain health benefits of coffee.

Need to Soak Nuts or Seeds?

February 06, 2024

Do nuts and seeds need to be soaked or roasted to reduce levels of phytates or lectins? Find out in our article about these antinutrient compounds.

Salt Substitutes

February 06, 2024

"Lite" salts and salt substitutes containing potassium can help to modestly lower blood pressure. What should you look for in a salt substitute and how do products compare? Find out in our Potassium Supplements Review, which also explains who should not use salt substitutes.

Prostate Supplement Adverse Events

February 06, 2024

A popular prostate supplement has been associated with more than 1,000 cases of adverse events, particularly reports of blood in the urine, according to a recent review. Get the details in our Prostate Supplements Review, which includes our Top Pick among prostate supplements.

Vitamin K2 + D to Slow Calcification of Arteries?

February 06, 2024

Does taking vitamin K2 plus vitamin D slow the progression of coronary artery calcification? Find out what a recent study showed in the Heart disease section of our Vitamin K Supplements Review, which includes our Top Pick for vitamin K.

Omega-7s for Wrinkles?

February 06, 2024

Did taking an omega-7 supplement decrease wrinkles around the eyes (“crow’s feet”) in a recent study? Find out in our Fish, Krill, and Algal Oil Supplements Review, which includes our Top Pick for getting omega-7s.

Also see: Do any supplements increase skin elasticity or tighten the skin?

Red Yeast Rice

February 09, 2024

Be aware that some red yeast rice products in the U.S. are higher strength than what’s now permitted in Europe. For details, see our Red Yeast Rice Supplements Review, which includes our Top Pick.

Sweeteners for Cold Drinks

February 09, 2024

If you're trying to avoid sugar, see our top 2 sweeteners for cold drinks in our article about sugar substitutes, which also includes our top choices for hot drinks and for baking.

Avoiding Counterfeits: More Brands Added

February 09, 2024

We've added information about 365 by Whole Foods Market, Doctor’s Best, and Dr. Mercola to our article about how to safely buy real vitamins and supplements.

Coffee & Blood Pressure

February 09, 2024

Does drinking regular coffee increase blood pressure in people taking blood pressure-lowering medication? See what a recent study showed in our article about coffee and heart health.

Pesticides on Produce

February 09, 2024

We recently wrote of a list of fruits and vegetables most likely to have pesticide residues, but it is important to note that these items don’t all necessarily have high levels of pesticides. We’ve published a much shorter list of fruits and vegetables of concern.

We also added information about a variety of coatings applied to produce and whether these need to be removed.

Concerned About Red Colorants?

February 09, 2024

Some supplements are colored with Red No. 3 or Red No. 40. Should you be concerned? Find out in our article about ingredients added to supplements.

Turmeric Instead of Salt

February 13, 2024

Adding certain spices, such as turmeric, can significantly reduce the amount of salt needed to add saltiness to food, according to a recent study. Get the details, and see our Top Pick among tested turmeric spices, in our Turmeric & Curcumin Review.

Also see: Do “lite” salts and salt substitutes containing potassium help lower blood pressure and reduce heart risks? Are they safe?

Crohn’s Disease, Colitis & Key Nutrients

February 13, 2024

Experts are advising that people with inflammatory bowel disease, including Crohn’s disease and ulcerative colitis, be monitored for deficiencies in vitamin D and iron.

Also see our Top Picks among vitamin D and iron supplements.

Supplement for Cognition?

February 13, 2024

Does taking nicotinamide riboside improve cognitive or physical function among older people with mild cognitive impairment? See what a recent study showed in the Nicotinamide riboside section of our NAD Booster Supplements Review. Also see our Top Pick for nicotinamide riboside.

Also see our article about supplements for memory and cognition.

PEA for Migraine?

February 13, 2024

Does taking PEA (palmitoylethanolamide) reduce migraine pain or lessen the number and severity of future episodes? Find out what a recent study showed in the Health effects section of our article about PEA, which includes a comparison of PEA products.

Also see: Do any supplements or foods help with migraine? Do any trigger migraine?

Removing Phytate and Lectins From Foods

February 13, 2024

We’ve answered the following questions about removing phytate and lectins from beans and other foods:

Do canned beans need to be soaked or cooked to remove lectins before eating?
Does soaking or cooking dried soybeans or edamame help remove phytate or lectins?
Can the nutrient bioavailability of beans be improved by cooking with garlic, onions, or tomato?

Exposure to Forever Chemicals

February 13, 2024

Learn about a tool to help you estimate your exposure to PFAS ("forever chemicals") and ways to reduce exposure. For details, see the PFAS section of our Water Filter Pitchers Review, which includes our Top Picks for removing PFAS.

Organic Produce

February 16, 2024

Can switching to organic fruits and vegetables reduce pesticides in the body? Find out in our article about washing fruits and vegetables.

Melatonin for MS?

February 16, 2024

Did a single dose of melatonin reduce symptoms of multiple sclerosis the next day? Find out what a recent study showed in the Melatonin Supplements Review, which includes our Top Picks.

Caffeine in Cold Brew Coffee

February 16, 2024

Does cold brew coffee have more or less caffeine than regular (hot brew) coffee? Find out in our article about brain benefits of coffee.

Forever Chemicals in Tea?

February 21, 2024

A recently published study found an association between intake of "unsweetened" tea and higher blood levels of PFAS ("forever chemicals"). Should you be concerned? See the details in the Concerns and Cautions section of our Green Tea Review, which includes our recent Top Picks among products.

Also find out if "plant-based" plastic tea bags may be less likely to release microplastics than regular plastic or nylon tea bags.

A new video explaining how to choose the best green tea is also now available.

Ritual Supplement for Wrinkles?

February 21, 2024

Does HyaCera by Ritual, a supplement promoted for reducing fine lines and wrinkles, work? Find out what research suggests in our article about phytoceramides.

Also see: Does CoQ10 reduce wrinkles, increase skin elasticity, or tighten the skin? Are there any other supplements that can help?

Big Benefits of Salt Substitute

February 21, 2024

A study among older people with high blood pressure showed that use of a salt substitute led to a dramatic reduction in heart attack and stroke. Get the details in the Salt Substitutes section of our Potassium Supplements Review, which includes information about popular salt substitutes on the market.

Lavender Oil for Shingles Nerve Pain?

February 21, 2024

Does lavender oil aromatherapy reduce nerve pain after shingles? Find out what a recent study showed in the Lavender oil section of our Lavender and Tea Tree Essential Oils Review, which includes our Top Picks for lavender oil.

Omega-3s for Preventing Preterm Birth

February 21, 2024

Some new guidelines suggest getting specific amounts of the omega-3s DHA and EPA during pregnancy. Get the details, including how to tell if your intake is too low and when to start supplementation, in the Pregnancy section of our Fish Oil Supplements Review, which includes our Top Picks among omega-3 supplements.

Lumbrokinase for Cancer, Infection?

February 21, 2024

Can lumbrokinase help slow cancer progression or treat chronic infections such as Lyme disease? Find out in our article about lumbrokinase.

Macadamia Nuts, Phytate & Lectins

February 21, 2024

Should you soak macadamia nuts to remove antinutrients such as phytate or lectins? Find out in our article about removing phytate and lectins from foods.

Vitamin D & Menopause

February 21, 2024

Does vitamin D supplementation affect the time of menopause onset? See what a recent study showed in the Early Menopause section of our Vitamin D Supplements Review, which includes our Top Picks for vitamin D.

Best Way to Take Vitamin D?

February 21, 2024

Vitamin D and other fat-soluble vitamins are best absorbed with some fat or oil, but how much fat or oil is needed to improve absorption of these vitamins? Find out in our article about the best way to take vitamins and minerals. Also see our Top Picks for vitamin D.

PEA With Antidepressants?

February 23, 2024

Does PEA (palmitoylethanolamide) interact with antidepressants such as SSRIs or MAOIs? Find out in our article about the safety and health effects of PEA.

Konjac Ceramides for Skin?

February 23, 2024

Does taking konjac ceramides (found in the ingredient SkinCera) improve skin appearance? Find out what a study showed in the skin hydration and wrinkles section of our article about phytoceramides.

Cold Brew Coffee Contamination?

February 23, 2024

Is cold brew coffee more likely to be contaminated with pesticides or microbes than regular, hot coffee? Find out in our article about coffee and heart health.

Sucralose (Splenda) and Gut Microbiome

February 23, 2024

Does sucralose (such as in Splenda) significantly alter the gut microbiome? Find out what research shows in our article about sugar substitutes.

Kratom Linked to Liver Injury

February 23, 2024

Use of kratom was linked with acute liver failure in a recent case report. Kratom may cause a variety of adverse effects and even death, particularly when used with other substances. Get the details in our article about kratom.

Vitamin D for Vertigo

February 23, 2024

Taking vitamin D may reduce episodes of vertigo in certain people. Get the details in the What It Does section of our Vitamin D Supplements Review, which includes our Top Picks for vitamin D.

Herbalife Products and Liver Injury

February 23, 2024

Use of two Herbalife products were associated with a recent case of liver injury. See the details in the article in our Warnings section.

Vision Supplement Discontinued

February 23, 2024

Our original Top Pick among supplements to slow age-related macular degeneration has been discontinued. We discuss other options in the Top Picks section of our Vision Supplements Review.

Heart Concern with High-Dose Niacin

February 23, 2024

New research suggests a negative effect of high-dose niacin, possibly explaining why it doesn’t reduce cardiovascular disease despite improving cholesterol levels. For details, see the Niacin section of our B Vitamins & Complexes Review, which includes our Top Picks among products.

Enzyme Toothpaste?

February 27, 2024

Can toothpaste with enzymes (as in Whitening Complete Care Toothpaste by Himalaya Botanique) whiten teeth or prevent cavities? Find out in our article about toothpaste and other dental products, which includes our Top Picks for many categories.

Alpha Lipoic Acid & Fatty Liver Disease

February 27, 2024

Does alpha lipoic acid help with metabolic fatty liver disease? See what research shows in our Alpha Lipoic Acid Supplements Review. Also see our Top Picks among alpha lipoic acid supplements.

Melatonin After Surgery?

February 27, 2024

Does taking melatonin improve sleep among people who’ve just had surgery? Find out what a recent study showed in the Before and After Medical Procedures section of our Melatonin Supplements Review. Also see our Top Picks for melatonin.

Matcha Green Tea

February 27, 2024

We recently announced our Top Pick for "ceremonial" matcha in our Green Tea Review. A CL member asked if we’ve tested "culinary matcha." Although we did not this year, we did in 2021 and we have added those results to the current report.

Poor Quality "Memory Supplements" Sold on Amazon

February 27, 2024

Recent tests showed that most galantamine “memory” products purchased on Amazon did not contain anywhere near the amounts listed on labels. See the details in our answer to the question: Do any supplements, foods or lifestyle modifications help with brain function, like memory and cognition?

March

Bleeding Gums: New Mouthwash Top Pick

March 01, 2024

Find out why we we’ve chosen a new Top Pick mouthwash to help prevent bleeding gums.

Also, find out why using mouthwash too many times per day might be unsafe.

Berkey Filter Replacement?

March 01, 2024

With Berkey water filters no longer being sold, how do replacement filters compare (such as those from Boroux, Kainasch, and ProPure)? Find out in our Water Filter Pitchers Review.

Leaky Pills

March 01, 2024

A problem with a popular vision supplement was reported by a CL member and there have been similar reports from other customers. For details, see the Vision Supplements Review.

Heart Concern With High Protein?

March 01, 2024

Too much protein from a single meal might pose cardiovascular risk according to a preliminary study. For details, see the Concerns and Cautions section of our Protein Powders and Shakes Review, which includes our Top Picks among protein products.

Sweeteners and Bladder Pain

March 01, 2024

If you suffer from bladder pain, find out which sweeteners have been associated with increased pain in our article about sugar substitutes. Also see our Top Picks among sugar substitutes.

Loss of Minerals with Reverse Osmosis

March 01, 2024

Reverse osmosis water filtration depletes water of minerals. Is it necessary to add minerals back? Find out in our article about reducing exposure to PFAS, which includes our Top Pick countertop reverse osmosis filter.

Also see our Water Pitcher Filters Review.

Is Plant-Based Calcium Better?

March 01, 2024

Is calcium from algae (as in Aquamin and AlgaeCal) better than other forms of calcium? Find out in the ConsumerTips section of our Calcium Supplements Review. Also see our Top Picks among calcium supplements.

Sweeteners for Keto Diet

March 05, 2024

See which sweeteners are our Top Picks for those on a low-carb or ketogenic diet. We’ve added this to our article about sugar substitutes.

Problems with Creatine

March 05, 2024

Recent tests of lesser-known brands of creatine gummies revealed that half contained little creatine and/or had impurities. Get the details by brand in our Muscle Enhancers Supplements Review. Also see our Top Picks among creatine supplements.

Fish Oil for Memory?

March 05, 2024

Did taking fish oil improve cognitive function or memory among older people with depression in a recent study? Find out in the Memory Enhancement section of our Fish Oil Supplements Review, which includes our Top Picks for fish oil.

Also see: Do any supplements, foods or lifestyle modifications help with brain function, like memory and cognition?

A Caution with Almond Milk

March 05, 2024

Almond milk can contain higher concentrations of calcium than dairy milk, which can lead to excessive calcium intake, as shown in a recent report. Get the details in the Concerns and Cautions section of our Plant-Based Milks Review, which includes our Top Picks.

Do Ethylene Absorbers Work?

March 05, 2024

Do ethylene absorbers extend the shelf life of fruits and vegetables? Find out in our article about washing fruits and vegetables.

Benefiber, Meta Mucil Tested

March 08, 2024

Find out how Benefiber compares to less expensive Optifiber and about its health claims, and how Meta Mucil Fiber Gummies is different from other Meta Mucil products we’ve tested. It’s all in our updated Prebiotic Supplements Review.

Also see our recent tests of psyllium supplements.

Lead In Cinnamon

March 08, 2024

Elevated levels of lead were found in ground cinnamon from several brands and should be avoided. For details, see our Cinnamon Review, which also identifies our Top Picks for ground cinnamon to avoid toxins.

Newly Approved Bone Health Supplement

March 08, 2024

We recently tested NuBest Tall 10+, a bone health supplement that contains calcium, vitamin D, and vitamin K. It was Approved for Quality and is now in our Calcium and Bone Health Supplements Review.

The product was tested and Approved through ConsumerLab's Quality Certification Program.

Sweeteners and the Heart?

March 08, 2024

Is there a higher risk of atrial fibrillation in people who drink artificially sweetened beverages? Find out what a recent study found in our article about sugar substitutes.

Salad Dressing

March 08, 2024

Does the oil in salad dressing increase absorption of vitamins from vegetables? Find out what a recent study showed in our answer to the question: Which vitamins and minerals should be taken together or separately?

Goat’s Rue for Boosting Milk Production?

March 08, 2024

Does taking goat’s rue promote milk production during breastfeeding? Find out in our article about supplements and breastfeeding.

Low-Acid Coffee for Reflux?

March 12, 2024

Are “low-acid” coffees easier on the stomach or less likely to cause reflux than regular coffee? Find out now in our article about coffee.

Also find out how coffee affects:

Help for Jaw Pain?

March 12, 2024

Does CBD reduce pain in people with temporomandibular disorder (TMD) when applied topically? Find out in our Review, which includes our Top Picks.

Green Tea & Blood Sugar

March 12, 2024

Does green tea reduce fasting blood sugar levels? See what a recent study showed in the Blood Sugar Control/Diabetes section of our Green Tea Review, which includes our Top Picks for green tea.

Lead in Meta Mucil

March 12, 2024

A CL member asked why Meta Mucil 4-in-1 Fiber powder was not tested by us this year. It is because of the lead contamination we found when we tested it in 2021, as noted in our recent report. Hoping to find less contamination, this year we tested Meta Mucil 3-in-1 capsules, as well as Meta Mucil Fiber Gummies (a prebiotic).

See our Top Picks among psyllium fiber and prebiotic fiber supplements.

Aloe Mouthwash?

March 12, 2024

Some mouthwashes, such as one from The Natural Dentist, contain aloe instead of alcohol, which can be too harsh for some people. But how effective are aloe-based mouthwashes? Find out in our article about toothpastes and other dental products.

Carcinogen in Folic Acid

March 15, 2024

Several folic acid supplements were recently recalled in Canada due to a carcinogenic impurity that can occur with folic acid (vitamin B-9). For details, see the Quality Concerns section of our B Vitamins Review, which includes our Top Picks for folic acid and B complexes.

Vitamin K - Name Change

March 15, 2024

The name of one of our Top Picks among vitamin K supplements has changed, although the ingredients remain the same. For details, see our Top Picks among vitamin K supplements.

Back Pain & Vitamin D

March 15, 2024

Are low levels of vitamin D linked with increased risk of lower back pain? See what a recent study found in the Bones and fractures section of our Vitamin D Supplements Review. Also see our Top Picks for vitamin D.

Supplements & Acne

March 15, 2024

Be aware that supplementing with whey protein may increase the risk of acne in some people, as noted in the Concerns and Cautions section of our Protein Supplements Review, which includes our Top Picks among products.

Learn about the effects of other supplements on acne.

Cinnamon & Blood Sugar

March 15, 2024

Did supplementing with cinnamon lower blood sugar in men and women with prediabetes? See what a recent study found in our Cinnamon Supplements and Spices Review.

Be aware that lead contamination was recently reported in several brands of cinnamon, as discussed in our Review, which also includes our Top Picks for ground cinnamon to avoid lead and other toxins.

A Benefit of Creamy Salad Dressing?

March 15, 2024

Do the fats in creamy salad dressings and in avocado increase the absorption of fat-soluble vitamins and carotenoids from vegetables? Find out in our article about vitamins and minerals that should be taken together or separately.

Better Skin With Bovine Colostrum?

March 15, 2024

Bovine colostrum supplements have been promoted for improving aging skin and reducing wrinkles, but is there any evidence of this? Find out in our article about bovine colostrum, which includes our top choice among products.

Coffee and Brain Bleed?

March 15, 2024

Does drinking coffee increase the risk of brain bleeds? Find out what research suggests in our article about coffee and heart health.

Prevagen Claims

March 19, 2024

A verdict was recently reached in a case regarding the truthfulness of Prevagen’s claims of improving memory. See the verdict in our article about Prevagen, which includes details regarding what's in Prevagen, its clinical evidence, and safety and side effects.

Bright Light Glasses for Depression?

March 19, 2024

Did a popular brand of bright light therapy glasses improve symptoms of depression? See what a new study found in our article about light box therapy for depression and sleep disorders.

Many Pulse Oximeters Perform Poorly

March 19, 2024

Nearly half of pulse oximeters did not meet regulatory standards for performance in recent tests. Find out which were best and which were worst in our article: "Which is the best pulse oximeter for home use?"

Olive Oil & Fatty Liver

March 19, 2024

Olive oil seems to offer benefits to people with fatty liver disease. See what a recent study showed in our Extra Virgin Olive Oil Review, which includes our Top Picks among olive oils.

Also see: Do any supplements help with fatty liver disease? Are some diets more beneficial than others?

Vitamin D for ED?

March 19, 2024

Did taking vitamin D improve sexual function among older men? Find out what a recent study showed in our Vitamin D Supplements Review. Also see our Top Picks for vitamin D.

Probiotic for COVID?

March 19, 2024

Did a probiotic promoted to support immune defenses against COVID-19 help prevent or treat COVID-19? Find out in our Probiotics Supplements Review, which includes our Top Picks among probiotics.

Also see: Do any supplements help with COVID-19? Do supplements like vitamin D, zinc, vitamin C, or herbals work?

Beetroot Juice Better for Some Than Others?

March 19, 2024

Beetroot juice may improve exercise capacity for some people, but the benefit appears to be different between women and men, as seen in a recent study. Find out more in our article about beetroot juice and supplements.

Avoiding Allergens in Soap

March 21, 2024

A recent review of products purchased on Amazon suggested terms to look for on labels to help avoid potential allergens. Learn more in our article about finding a soap that won’t irritate skin, which includes our Top Picks for soap and body wash to avoid irritation.

Fish Oil for Migraines?

March 21, 2024

Fish oil may reduce the frequency of migraine headache, although a recent study suggested the benefit may depend on gender. For details, see the Migraine Headache section of our Fish Oil Supplements Review, which includes our Top Picks.

Also see: Do any supplements or foods help with migraine? Do any trigger migraine?

Urolithin A to Protect Kidneys?

March 21, 2024

Does urolithin A prevent kidney damage? Find out in our article about Urolithin A.

New Top Pick Prenatal Multivitamin

March 21, 2024

Concerned by problems recently identified with 11 of 12 prenatal multivitamins in recent tests, we purchased and tested additional prenatal supplements, leading us to change our Top Pick. Learn why in the Top Picks section of our Multivitamin Supplements Review, which includes multis for men, women, children, and pets.

Tea Tree Oil Toothpaste?

March 21, 2024

Dental products containing tea tree oil (such as toothpastes and mouthwashes) can be dangerous. Learn more in our article about dental products, which includes our Top Picks for toothpaste.

Lower Cholesterol with Green Tea

March 21, 2024

Drinking green tea can lower cholesterol or triglyceride levels, as was recently shown. See the details in the What It Does section of our Green Tea Review, which includes our Top Picks for green tea.

NMN Off Walmart, iHerb

March 26, 2024

Walmart and iHerb have joined Amazon in no longer selling NMN (nicotinamide mononucleotide) supplements. To find out why, see the NAD Boosters Review, which includes our tests of NMN, NADH, and nicotinamide riboside products and our Top Picks among them.

Arsenic in Edible Seaweed

March 26, 2024

A popular type of edible seaweed was found to contain very high amounts of arsenic, posing a cancer risk. See the details in our Seaweed Snacks & Foods Review. Also see what our tests of popular products showed and our Top Picks among seaweed snacks and foods.

Preventing Tick Bites

March 26, 2024

Does wearing permethrin-treated socks reduce tick bites? Find out what a recent study showed in our article about tick & mosquito sprays, which includes our Top Picks among repellents and insecticides.

Black Cohosh Concern

March 26, 2024

Use of black cohosh (taken to reduce menopausal hot flashes) may have caused slowed heart rate, according to a recent report. Get the details in our Menopause Supplements Review.

Apple Watch & O2?

March 26, 2024

How accurate is the Apple Watch for measuring blood oxygen levels? Find out in our article about pulse oximeters, which includes our Top Picks.

Also, learn which pulse oximeter readings are considered "normal" and which should prompt you to call your physician or seek medical care.

Detox Foot Pads?

March 26, 2024

Detox foot pads are promoted for removing heavy metals and other toxins from the body, but do they really work? Find out in our article about detox foot pads.

Red Yeast Rice Linked to Deaths in Japan

March 29, 2024

Red yeast rice products in Japan have recently been recalled after being linked with kidney injury and four deaths. Get the details in our Red Yeast Rice Review, which includes our tests for citrinin (a potential kidney toxin in red yeast rice) and our Top Picks among products.

Microplastics Cardiovascular Concern

March 29, 2024

Microplastic particles were recently found in arterial plaque in many people, and this was associated with much higher risk of stroke, heart attack, and death. Get the details in the Microplastics section of our Water Filter Pitchers Review. Also see our Top Pick water filter pitcher for removing microplastics.

Bacopa for Memory?

March 29, 2024

Did bacopa extract improve memory and cognition in a recent study? Find out in our article about bacopa extract for memory, mood, and sleep.

Also see: Do any supplements, foods or lifestyle modifications help with brain function, like memory and cognition?

Vitamin D & Prostate Cancer-Related Bone Loss

March 29, 2024

Taking high-dose vitamin D during androgen deprivation therapy for prostate cancer may help some men prevent bone loss, according to a recent study. Get the details in the Prostate Cancer section of our Vitamin D Supplements Review, which includes our Top Picks for vitamin D.

Permethrin & Sun-Protection Clothing

March 29, 2024

Can permethrin spray be applied to sun-protection clothing without adversely affecting the UV protection? Find out in our article about insect repellents and insecticides.

Understanding Fluoride

March 29, 2024

How does fluoride protect teeth and do older people need it? Find out in our article about toothpaste, which includes our Top Picks.

What is CBG (cannabigerol)?

March 29, 2024

What is CBG and how does it compare to CBD? Find out in our Review, which includes our Top Picks among products.

April

Laser Caps for Hair?

April 02, 2024

Do low-light laser caps and helmets such as Capillus and Theradome really help to grow hair? Find out in our article about supplements for hair.

Best Bacopa?

April 02, 2024

A CL member asked which bacopa supplement is best. Based on what has been used in clinical studies, you can see which product we suggest as a top choice for bacopa.

Hydroxyapatite Toothpaste

April 02, 2024

Is Davids Sensitive + Whitening toothpaste a good option for people who want to use hydroxyapatite in place of fluoride? Find out in our article about toothpaste and dental products, which includes our Top Picks.

Lava Soap For Dry Skin?

April 02, 2024

Is Lava Bar Soap a good option for people with dry skin? Find out in our article about soaps that won't irritate skin, which includes our Top Picks among soaps and body washes.

Does Gas-X Work?

April 02, 2024

Does simethicone, the active ingredient in Gas-X and Phazyme, reduce gas? Find out in our article about supplements for gas.

Swelling from Minoxidil

April 05, 2024

Even when used topically, minoxidil may cause swelling of the hands and feet. Learn the factors that increase this risk, in our article about supplements and other treatment options for supplements and other treatment options for hair growth.

New Formulation of Ivory Soap

April 05, 2024

Ivory Original Bar Soap was recently reformulated, but is it right for dry skin? Find out in our article about soaps for dry skin.

Apple Cider Vinegar

April 05, 2024

A recent study suggested that apple cider vinegar decreased body weight. See which dose worked best and get other details in our Apple Cider Vinegar Review, which includes our Top Picks for apple cider vinegar.

Charcoal Soap

April 05, 2024

Are charcoal soaps safe and effective for cleaning the skin? Find out what evidence suggests in our article about soaps for dry skin.

Fake Saffron

April 09, 2024

Recent tests of saffron supplements by researchers at a U.S. university found most products contained "no saffron compounds." For details and to see what ConsumerLab found in its own tests, see our Saffron Supplements Review, which includes our two Top Picks for saffron.

Best Fluoride Toothpaste Without SLS

April 09, 2024

A member asked us to recommend a fluoride toothpaste that does not contain SLS or menthol/mint flavoring, which bothers them. See which product we selected in our article about toothpastes and other dental products.

Vegamour for Hair?

April 09, 2024

Vegamour GRO Hair Serum is marketed for making hair thicker and fuller but is there any clinical evidence to support this claim? Find out in our article about supplements for hair.

CoQ10 Deficiency?

April 09, 2024

Due to genetics, are some people more likely to need CoQ10 or ubiquinol? Find out in our CoQ10 and Ubiquinol Supplements Review, which includes our Top Picks for CoQ10 and ubiquinol.

Fish Oil and Heartburn/Reflux

April 09, 2024

In some people, fish oil causes heartburn or reflux. See tips for reducing these side effects in our Fish Oil Supplements Review, which includes our Top Picks among fish, krill, and algal oil supplements.

Also see: Which supplements, foods or diet and lifestyle changes help relieve acid reflux (heartburn), and which worsen it?

Aspirin Interactions

April 09, 2024

Aspirin is taken by some people as a blood thinner. Find out which vitamin may increase the effects of aspirin, and which vitamins and minerals may be affected by taking aspirin. We’ve added this information to our article about supplements interactions with the anticoagulant warfarin.

Magnesium Glycinate – What to Look For

April 09, 2024

Some magnesium glycinate supplements are not truly this chelated form of magnesium. Find out what to look for on labels to help ensure you’re getting chelated magnesium glycinate in the ConsumerTips section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.

Saffron for Fatty Liver?

April 09, 2024

Did taking a saffron supplement decrease liver fat in people with fatty liver disease? Find out what a recent study showed in our Saffron Supplements Review. Also see our Top Picks among saffron supplements.

Creatine and Kidney Tests

April 09, 2024

Does taking creatine interfere with tests of kidney function that measure creatinine? Find out in the Concerns and Cautions section of our Creatine and BCAAs Review, which includes our Top Picks for creatine and other workout supplements.

Also see our answer to the question: Which vitamins and supplements should be stopped before getting blood work and laboratory tests?

Selenium Deficiency In Vegetarians

April 11, 2024

Are vegans and vegetarians likely to be deficient in selenium? Depends on where you live. Learn more in our Selenium Supplements Review, which includes our Top Picks among selenium supplements.

Also see: Top 8 vitamins and nutrients for vegetarians and vegans.

Cinnamon Recall

April 11, 2024

Another brand of cinnamon has been recalled for elevated levels of lead. Get the details in the Quality Concerns section of our Cinnamon Supplements and Spices Review, which also identifies our Top Picks for ground cinnamon to avoid toxins.

Top Pick Water Filters

April 11, 2024

We’ve chosen an overall Top Pick among water filter pitchers based on test performance, cost, and certification. We have also changed our Top Picks for certain uses due to changes in products and availability. See our current Top Picks in our Water Filter Pitcher Review.

D-Mannose for Preventing UTI?

April 11, 2024

Does D-mannose help prevent urinary tract infections? Find out what a recent study showed in the What It Does section of our D-Mannose Supplements Review. Also see our Top Picks for D-Mannose.

Plant-Based Meat and Heart Health

April 11, 2024

Does replacing animal meat with plant-based “meat” such as the Beyond Burger or Impossible Burger improve heart health? Find out what a recent study showed in our article comparing the Beyond Burger, the Impossible Burger, and a beef burger.

Olive Oil Soap

April 12, 2024

A CL Member asked if olive oil soaps can help moisturize dry skin. Find out what the evidence suggests, plus, learn how olive oil may affect eczema, in our article about soaps for dry skin. Also see our Top Picks for soap and bodywash for dry skin.

Also, see our Extra Virgin Olive Oil Review, which includes our Top Picks among bottled olive oils.

Oral vs. Topical Minoxidil

April 12, 2024

How does taking low-dose minoxidil as a pill compare with topical minoxidil for hair growth? See what a recent study found in our article about supplements and treatments for hair.

Pharmaceutical Grade Fish Oil

April 16, 2024

A member asked why CVS has stopped selling its Pharmaceutical Grade Fish Oil. We asked CVS, which gave no good reason, but we suspect that the product may have been considered an "unapproved" medication due to its similarity to prescription fish oil. But good options remain: See our Top Pick for highly concentrated fish oil in our Omega-3 Supplements Review.

PFAS Toxins in Seafood

April 16, 2024

A recent study raised concern about high levels of PFAS in certain seafoods. Get the details in our Canned Fish Review, which includes our Top Picks among canned and packaged tuna, salmon, sardines, and herring.

PFAS Toxins in Drinking Water

April 16, 2024

Separately, the EPA recently finalized limits on PFAS in drinking water, but this gives water districts until 2029 to take corrective action. Learn more and see our Top Pick water filter pitcher for removing PFAS.

Body Wash: New Top Pick

April 16, 2024

Find out why we’ve selected a new Top Pick body wash in our article 5 Tips for Finding a Soap or Body Wash That Won't Irritate Skin, which also includes our Top Pick bar soap.

Vitamin D & Age

April 16, 2024

Do older people produce less vitamin D from sunlight than younger people? Find out in the ConsumerTips section of our Vitamin D Supplements Review, which explains who is most likely to have low levels of vitamin D. Also see our Top Picks among vitamin D supplements.

MitoQ for Arteries?

April 16, 2024

Did taking MitoQ, a compound related to CoQ10, improve cardiovascular fitness in older men and women? See what a recent study found in the MitoQ section of our CoQ10 & Ubiquinol Supplements Review, which includes our Top Picks among CoQ10 and ubiquinol supplements.

How Olive Oil Lowers Cholesterol

April 19, 2024

A recent study suggested how substituting olive oil in place of saturated fats can reduce cholesterol. Get the details in the Cardiovascular Disease section of our Extra Virgin Olive Oil Review, which includes our Top Picks for olive oil.

Also see: Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?

NMN and Kidney Injury

April 19, 2024

New laboratory research suggests that long-term supplementation with NMN might cause kidney injury in older people. Learn more in the Concerns and Cautions section of our NAD Booster Supplements Review.

Acetyl-L-Carnitine for Nerve Pain?

April 19, 2024

Is acetyl-L-carnitine recommended to reduce nerve pain in people with diabetes? Find out in the What It Does section of our Acetyl-L-Carnitine Supplements Review.

Also see: Do any supplements, like Nervive, help with nerve pain, like sciatica, diabetic neuropathy or postherpetic neuralgia?

Bar Soap for Dry Skin -- New Top Pick

April 19, 2024

Find out which bar soap is our new Top Pick for dry skin and learn why we like it better than our previous Top Pick bar soap, in our article: 5 Tips for Finding a Soap or Body Wash That Won't Irritate Skin.

How to Avoid Counterfeit Supplements: Deva Nutrition

April 19, 2024

We've added information about how to safely purchase Deva Nutrition products. Get the details for Deva, and 62 other popular supplement brands, in our article: Where to Safely Buy Real Vitamins and Supplements.

Collagen Sources

April 19, 2024

Wondering if your collagen is from pigs, cows, or fish? We have tested them all, as discussed in the Top Picks section of our Collagen Supplements Review.

Chitosan for Hair?

April 19, 2024

Can applying chitosan to hair help it grow? Find out what research suggests in our article about supplements for hair.

Also, find out which antidepressants are most and least likely to be associated with loss of hair.

Vitamin E, Evening Primrose Oil, & Breast Pain

April 19, 2024

Does supplementing with vitamin E and/or evening primrose oil reduce pain among women with menstrual cycle-associated breast pain? Find out what research suggests in the What It Does section of our Vitamin E Supplements Review. Also see our Top Picks among vitamin E supplements.

Organic Olive Oil?

April 23, 2024

Are pesticides used on olives and should I seek organic olive oil? See the discussion in our Extra Virgin Olive Oil Review, which includes our Top Pick for organic extra virgin olive oil.

Taking Probiotics With Vitamins and Minerals?

April 23, 2024

Is it okay to take probiotics at the same time as vitamin and mineral supplements? Find out in our Probiotics Supplements Review, which includes our Top Picks among probiotics supplements.

Also see: Which vitamins and minerals should be taken together or separately?

Stevia in Toothpaste?

April 23, 2024

What are the pros and cons of toothpaste sweetened with stevia, such as All in One Toothpaste from The Natural Dentist?

Hair Devices & Safety

April 23, 2024

Can low-level light therapy (LLLT) hair devices such as Theradome or Capillus cause eye damage? Find out in our article about hair supplements and devices.

Probiotics & Cholesterol

April 23, 2024

How might probiotics work to lower cholesterol? Find out what a recent study suggests in the Lowering cholesterol & apoB section of our Probiotics Supplements Review, which includes our Top Picks among probiotic supplements.

Also see: Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?

Prebiotic for Better Memory?

April 23, 2024

Did taking Sunfiber, a prebiotic, boost memory, mood, or sleep in older men and women? See what a recent study found in our Prebiotic Supplements Review, which includes our Top Picks among prebiotic supplements.

Also see: Do any supplements, foods or lifestyle modifications help with brain function, like memory and cognition?

Elderberry Interactions?

April 23, 2024

Taking elderberry extract along with certain medications might increase the risk of adverse effects, according to a recent report. Get the details in our Elderberry Supplements Review. Also see our Top Picks among elderberry products.

Recalled Supplement Still Sold

April 26, 2024

A ConsumerLab member alerted us that a phosphatidylserine supplement that was the subject of recall in January (triggered by ConsumerLab.com’s findings) was still being sold on Amazon. For details, see the Update in our Phosphatidylserine Review, which includes our Top Pick for phosphatidylserine.

Top Pick Dental Floss

April 26, 2024

CL members pointed out that Consumer Reports indicated some concern with a dental floss that we recommend. See why we continue to recommend it.

Medication Found in Umary Supplement

April 26, 2024

A potent medication was found in Umary Hyaluronic Acid, with serious side effects reported. Get the details. Also see our Top Picks among supplements for joint health.

Benzene in Antiperspirant: Settlement

April 26, 2024

Unilever has agreed to pay $2 million to settle a lawsuit over the presence of benzene, a potential carcinogen, found in Sauve antiperspirants. See the details and our list of other contaminated antiperspirants and deodorants.

Alpha-Lipoic Acid for Nerve Pain?

April 26, 2024

Is alpha-lipoic acid as effective as pregabalin (Lyrica) in reducing the pain of peripheral neuropathy? Learn what a recent study found in the What It Does section of our Alpha-Lipoic Acid Supplements Review, which includes our Top Pick for alpha-lipoic acid.

Also see: Do any supplements, like Nervive, help with nerve pain, like sciatica, diabetic neuropathy or postherpetic neuralgia?

Supplements to Avoid Before Surgery?

April 26, 2024

We've added additional supplements you should stop taking before surgery to avoid increased bleeding risk to our related article, which includes recommendations on how long before surgery these should be discontinued.

Magnesium for Anxiety and Sleep?

April 30, 2024

Do magnesium supplements reduce anxiety or improve sleep? See what studies have shown for anxiety and sleep and also learn about the product Natural Vitality Calm which we tested in our recent Magnesium Supplements Review.

Magnesium for Leg Cramps?

April 30, 2024

Does magnesium reduce leg cramps? Find out what studies have shown in our Magnesium Supplements Review.

Also see our recent Top Pick among magnesium supplements.

Flaxseed and Blood Thinners

April 30, 2024

Does flaxseed have a blood-thinning effect, and might it interact with blood thinners such as warfarin (Coumadin) or apixaban (Eliquis)? Find out in the Concerns and Cautions section of our Flaxseed Review. Also see our Top Pick for flaxseed (whole and ground) and flaxseed oil.

Probiotic for Boosting Testosterone?

April 30, 2024

Did taking a probiotic boost testosterone levels in men? Find out what a recent study showed in the Other conditions section of our Probiotics Supplements Review, which includes our Top Picks.

Also see: 10 Supplements That May Boost Testosterone (And 12 That May Not)

Attitude Soap

April 30, 2024

Find out why Attitude brand bar soaps and shower gels are not among our Top Picks for sensitive skin in our article: 5 Tips for Finding a Soap or Body Wash That Won't Irritate Skin.

May

Mislabeled Magnesium

May 03, 2024

In response to a lawsuit, a popular brand of supplements is now providing refunds to people who purchased one of its magnesium products. The suit alleged that the products were mislabeled regarding the form of magnesium they contained. See the Update in our Magnesium Supplements Review, which includes our Top Pick for magnesium.

Similarly, one of the magnesium products covered in our recent Review also seems to have its form of magnesium mislabeled despite providing the correct amount of magnesium. We have changed its status to Not Approved (see the Update).

In addition, a company that sells a magnesium supplement that was Not Approved by us responded to a question about this from a ConsumerLab member. The response suggests that the company does not understand that its product is mislabeled (see the Update).

Fatty15 Side Effects

May 03, 2024

Learn about possible side effects of the supplement fatty15.

Do Ionic Foot baths Work?

May 03, 2024

Find out whether ionic foot baths are effective at removing toxins from the body in our article: Do detox foot pads or ionic foot baths remove heavy metals or other toxins from the body?

L-Citrulline for Fatty Liver?

May 03, 2024

Does taking L-citrulline decrease liver fat or have other benefits in people with metabolic-associated fatty liver disease (MAFLD)? See what a recent study found in the What It Does section of our L-Citrulline Supplements Review, which includes our Top Picks among L-citrulline supplements.

Also see: Do any supplements help with fatty liver disease? Are some diets more beneficial than others?

Thiamin Deficiency After Bariatric Surgery

May 03, 2024

Having bariatric surgery can lead to vitamin deficiencies in people who do not follow recommended supplementation. This was recently reported in three individuals who developed thiamin deficiency after gastric bypass surgery. Get the details in the Thiamin section of our B Vitamin Supplements Review.

Also see our Top Pick among multivitamins for people who have undergone bariatric surgery and our article about supplements to take or avoid after bariatric surgery.

Ashwagandha for Stress?

May 07, 2024

A recent study found that an ashwagandha extract reduced stress, anxiety, and depression, but dose and type of extract appears to matter. See the details in the Stress section of our Ashwagandha Supplements Review, which includes our Top Picks among ashwagandha supplements.

Also see: Do any supplements help relieve stress?

Turmeric for Arthritis?

May 07, 2024

Does supplementing with turmeric extract (curcumin) help reduce joint pain in people with rheumatoid arthritis? Find out what a recent study showed in the Arthritis section of our Turmeric and Curcumin Supplements and Spices Review, which includes our Top Picks for turmeric and curcumin.

Also see: Which supplements help with arthritis?

Probiotic for IBS

May 07, 2024

Can a probiotic (live or heat-treated) reduce symptoms of diarrhea-predominant irritable bowel syndrome? Find out what a recent study showed in the IBS section of our Probiotic Supplements Review. Also see our Top Picks among probiotics.

Also see: Do any supplements help for irritable bowel syndrome (IBS)?

RoundUp in Cinnamon

May 07, 2024

A recent study found glyphosate (RoundUp) in some popular brands of cinnamon. Is this a health concern? Get the brand-specific details in the Quality Concerns section of our Cinnamon Supplements & Spices Review. Also see our Top Pick among cinnamon spices and supplements.

Change in Ginger Product

May 07, 2024

We recently learned of a change to the ginger supplement that had the highest concentration of ginger compounds in our tests. See the Update in our Ginger Supplements and Spices Review, which includes our Top Picks for ginger.

Magnesium Threonate for Memory?

May 07, 2024

Is magnesium threonate (found in Magtein) better than other forms of magnesium for memory and cognition? Find out in the Dementia and cognition section of our Magnesium Supplements Review.

Also see our Top Pick among magnesium supplements.

New Top Pick for Vision

May 10, 2024

We have tested and chosen a new Top Pick among supplements to slow the progression of age-related macular degeneration. Get the details. Also, be aware that some formulas contain too much zinc, which has been reported to cause anemia.

Environmental Effects of Mineral Sunscreens

May 10, 2024

Mineral sunscreens are believed to be safer for ocean life than chemical sunscreens, but they still may do some harm, according to a recent study. Learn more in our article about finding the best sunscreen.

Eggs and Risk of Death

May 10, 2024

A recent study found that eating more than a certain number of eggs (a source of choline) daily carried an increased risk of death among people with a history of heart disease or stroke. Get the details in the Concerns and Cautions section of our Choline Supplements Review.

Magnesium, Sleep Apnea & Restless Legs

May 10, 2024

Does taking magnesium help with sleep apnea? Does it help with restless legs syndrome? These questions are addressed in our Magnesium Supplements Review, which includes our Top Picks among magnesium supplements.

Also see: Do any supplements help with restless legs syndrome?

Fatty15 for Anemia?

May 10, 2024

Is there clinical evidence that the supplement fatty15 optimizes red cell production? See our article about fatty15 (C15:0 fatty acid).

Supplements and Blood Pressure

May 10, 2024

Find out which supplements may increase or decrease blood pressure, and learn what to look for when selecting a home blood pressure monitor, in our article about supplements and blood pressure.

GABA for Sleep or Mood?

May 14, 2024

The authors of a recent study suggested that taking GABA before bedtime enhanced sleep efficiency, but we question whether it really helped at all, as discussed in the Insomnia section of our GABA Supplements Review, which includes our Top Picks among GABA supplements.

Also see: Which supplements and lifestyle changes improve sleep, and which cause insomnia?

When Taking Calcium Hurts

May 14, 2024

Results of a major study suggest that supplementing with calcium can decrease or increase the risk of hip fracture in postmenopausal women depending on age. See the details in the Bone health and fractures section of our Calcium Supplements Review. Also see our Top Picks for calcium and for vitamin D.

Avocado Health Benefits?

May 14, 2024

Find out if consuming one avocado per day reduced obesity and cholesterol levels in a recent study in the Avocado fruit section of our Avocado Oil Review.

Also see our Top Picks among avocado oils.

Best Form of Lutein?

May 14, 2024

Is one form of lutein more effective in raising blood levels of lutein than another? See what a recent study found in the ConsumerTips section our Vision Supplements Review, which also explains the best way to take lutein to improve absorption. Also see our new Top Pick vision supplement for slowing age-related macular degeneration.

Plant-Based Milks: Iodine Concern

May 14, 2024

Be aware that almond, oat, and soy milk tend to contain very little iodine compared to cow’s milk, which could increase the risk of iodine deficiency and thyroid problems in people who do not get enough iodine from other sources. Get the details in the Concerns and Cautions section of our Plant-Based Milks Review. This is particularly important for women who are pregnant or breastfeeding – due to increased iodine requirements, see our Top Pick prenatal multivitamin for more details.

Also see: Top 8 vitamins and nutrients for vegetarians and vegans

Chlorophyll Supplements: Benefits and Risks

May 14, 2024

Do chlorophyll supplements reduce body odor, help prevent cancer, or have other health benefits, and are there adverse effects? Find out in our answer to the question: What are the health benefits of chlorophyll and chlorophyllin, and are they safe?

Rinse After Brushing?

May 14, 2024

A study showed how much more fluoride (from toothpaste) persists in the mouth when spitting, but not rinsing, after brushing – a practice that experts suggest. See the details in our article about toothpaste, which includes our Top Picks.

Melatonin and Restless Legs

May 14, 2024

Melatonin may help some people fall asleep faster, but might it worsen symptoms in people with restless legs syndrome (RLS), which makes sleeping more difficult? Find out in the Concerns and Cautions section of our Melatonin Supplements Review, which includes information about other potential side effects, as well as interactions, with melatonin.

Phthalates Found in Extra Virgin Olive Oil

May 17, 2024

A recent study detected phthalates (plasticizer chemicals) in popular extra virgin olive oils. Get the details by brand, and find out if you should be concerned, in the Quality Concerns section of our Extra Virgin Olive Oils (EVOO) Review, which includes our Top Picks for EVOO.

Magnesium Top Pick

May 17, 2024

We’ve added a 2^nd Top Pick for magnesium. It’s well absorbed, with a lower risk of causing diarrhea. Get the details in the Top Picks section of our recent Magnesium Supplements Review.

Our Recommended Sunscreens

May 17, 2024

With summer around the corner, we updated our list of recommended sunscreens. Each is broad-spectrum for UVA and UVB, does not contain untested chemical sunscreens, and has not been found to be contaminated with benzene (a carcinogen).

Can Omega-3 Help with Dry Eye?

May 17, 2024

Did taking an omega-3 fatty acid supplement for 3 months improve dry eye symptoms? Find out in the Dry Eye section of our Fish Oil/Omega-3 Supplements Review, which includes our Top Picks among omega-3 supplements.

Prescription Toothpaste?

May 17, 2024

Find out who may need prescription toothpaste and how it differs from regular toothpaste.

Lower Cost for Fatty15?

May 17, 2024

The supplement fatty15 is expensive. Is its key ingredient available at lower cost? Find out in our article about C15:0 fatty acid.

Which Form of Chlorophyllin?

May 17, 2024

Chlorophyllin is a derivative of chlorophyll found in supplements, typically as sodium copper chlorophyllin. Some products contain sodium magnesium chlorophyllin, but does it have proven benefits? Find out in our article about chlorophyll and chlorophyllin.

Allergy to Metamucil

May 21, 2024

Asthma and allergic reactions to psyllium fiber supplements, including Metamucil, have been reported, although not common. Get the details in the Concerns and Cautions section of our Psyllium Review, which includes our Top Picks for psyllium.

How to Avoid Counterfeit Supplements

May 21, 2024

We’ve now collected information about how to safely purchase supplements online for 65 popular brands.

L-Theanine May Reduce Sleep

May 21, 2024

A recent study of L-theanine suggests it may significantly reduce time asleep. See the details in the What It Does section of our L-Theanine Supplements Review, which includes our Top Picks.

Ashwagandha Can Impact Thyroid Function

May 21, 2024

Be aware that ashwagandha supplements may increase thyroid hormone levels and cause side effects, as was recently reported. Get the details, including symptoms, in the Concerns and Cautions section of our Ashwagandha Supplements Review, which includes our Top Picks.

Andrographis Health Effects

May 21, 2024

Find out if andrographis helps with conditions such as cancer, COVID-19, and multiple sclerosis in our article about the health benefits and safety of andrographis.

Also see: Do any supplements reduce symptoms or relapse of multiple sclerosis?

Also see: Do any supplements help with COVID-19?

Arginine for Libido, Mood?

May 21, 2024

Did taking L-arginine improve sexual function or mood in women with depression? Find out what a recent study showed in the What It Does section of our L-Arginine Supplements Review, which includes our Top Picks.

Vitamin D for Asthma?

May 21, 2024

Does high-dose vitamin D improve asthma? Find out what a recent study showed in the Asthma section of our Vitamin D Supplements Review, which includes our Top Picks.

MSM Drops for Dry Eye?

May 21, 2024

Should you consider eye drops containing MSM for dry eye? Find out in our article about "natural" treatments and supplements for dry eye.

Iron Supplements and Blood Tests

May 21, 2024

Should iron supplements be stopped before blood tests to monitor anemia? Find out in the ConsumerTips section of our Iron Supplements Review. Also see our Top Picks among iron supplements.

High Levels of Toxic Metals in Some Chocolates and Cocoas

May 24, 2024

Recent tests of common chocolates and cocoas sold in the U.S. identified several with disturbingly high levels of the toxic metals cadmium and lead. For details, see the Update in our Dark Chocolate and Cocoa Review. Also see our Top Picks among dark chocolates and cocoas.

Krill Oil for Osteoarthritis?

May 24, 2024

Does taking krill oil reduce pain or swelling from knee osteoarthritis? Learn what a recent study found in the Osteoarthritis section of our Omega-3 Supplements Review, which includes our Top Picks for krill oil and other omega-3 supplements.

Fluoride Risk During Pregnancy?

May 24, 2024

A recent study suggested a link between higher fluoride exposure during late pregnancy and an increased risk of certain behavior problems in offspring, although there are notable caveats. See our article about fluoride and ADHD for details.

Get more information about fluoride in our article about toothpaste.

Biotin vs. Biothin

May 24, 2024

What is the difference between biotin and Biothin? Find out in our article about biotin for nails and hair.

Fish Oil & Atrial Fibrillation

May 29, 2024

Be aware that regular use of fish oil supplements may increase the risk of atrial fibrillation. See the Concerns and Cautions section of our Fish Oil Supplements Review for the latest information. Also see our Top Picks among fish oil supplements.

Cholesterol Lowering with Probiotic?

May 29, 2024

Did taking a probiotic supplement decrease LDL cholesterol or triglyceride levels in older men and women in a recent study? Find out in the Lowering cholesterol, triglycerides, and apoB section of our Probiotic Supplements Review. Also see our Top Picks among probiotics.

Eggs for Alzheimer’s

May 29, 2024

Weekly consumption of a modest number of eggs, which are a good source of choline, was associated with a dramatic reduction in risk of Alzheimer’s disease, according to a recent study. Choline supplements may also be helpful. Get the details in the Alzheimer's section of our Choline Supplements Review, which includes our Top Picks among choline supplements.

Curcumin for Fatty Liver?

May 29, 2024

Did taking curcumin decrease liver fat in people with fatty liver disease? Find out what a recent study showed in the Fatty Liver section of our Turmeric and Curcumin Review. Also see our Top Picks among turmeric and curcumin supplements and spices.

Trouble Swallowing & Iron Deficiency

May 29, 2024

Although uncommon, be aware that iron-deficiency anemia can make swallowing difficult for some people. Get the details, including if iron supplementation can help correct this symptom, in the Iron Deficiency and Anemia section of our Iron Supplements Review, which includes our Top Picks for iron.

Also see: 7 Tips to Avoid Getting a Pill Stuck in Your Throat.

Ring-Type Pulse Oximeters

May 29, 2024

What are the pros and cons of ring-type pulse oximeters? Find out in our article about pulse oximeters, and learn why these may be particularly useful to people with darker skin.

Fluoride Exposure and the Brain

May 31, 2024

Some groups claim that fluoride may be a cognitive neurodevelopmental hazard to humans. Learn why this claim is misleading in our article about fluoride exposure in children.

Have Kidney Disease? Watch What’s In Your Water

May 31, 2024

People with chronic kidney disease are particularly susceptible to the toxic effects of heavy metals. Even low levels of lead in drinking water may be harmful, according to a recent study. See our Water Filter Pitchers Review for details. Also see our Top Picks among water filter pitchers.

Coffee Intake & Osteoporosis

May 31, 2024

Drinking coffee was linked with a lower risk of osteoporosis in a recent study, but the amount and type of coffee both appear to matter. See the details in our article about coffee and bone health.

Essential Oils Legal Settlement

May 31, 2024

Young Living Essential Oils has agreed to pay $5 million dollars to settle a class action lawsuit regarding a "therapeutic" claim in marketing its essential oils, including one that we tested in our Lavender and Tea Tree Essential Oils Review. See settlement details in our Recalls & Warnings section.

Caution with Apple Cider Vinegar Pills

May 31, 2024

We found that apple cider vinegar capsules from a popular brand pose a risk to users due to very high acid content. For details, see our Apple Cider Vinegar Review, which includes our Top Picks among bottle vinegars and pills.

June

Melatonin & Sleep Apnea

June 04, 2024

Taking melatonin may improve sleep in people with sleep apnea who use CPAP devices according to a recent study. See the details in the What It Does section of our Melatonin Supplements Review, which includes our Top Picks for melatonin.

Magnesium for Sleep

June 04, 2024

Which form of magnesium helps with sleep? See the Sleep section of our Magnesium Review, which includes our Top Picks for magnesium.

Walnuts for Bone Health?

June 04, 2024

Did eating walnuts daily for 2 years reduce fractures among older men and women? Find out what a recent study showed in the What It Does section of our Shelled Walnuts Review, which includes our Top Picks among shelled walnuts.

Also see: Do any supplements or diets help prevent or treat osteoporosis?

Do Detox Supplements Work?

June 04, 2024

Do "detox" supplements really remove heavy metals and other toxins from the body? Are they safe? Find out in our new article about detox supplements.

Caution With White Willow in Joint Supplements

June 04, 2024

A CL member asked about potential side effects of taking white willow. Be aware that white willow extract is added to some joint health supplements and can have side effects. For details, see the Concerns and Cautions section of our Joint Health Supplements Review, which includes our Top Picks among products.

Supplement for Dry Eye?

June 07, 2024

A new "dry eye supplement" decreased symptoms of dry eye in a recent study - but was it enough to stop using lubricating drops? Find out more in the What It Does section of our Vision Supplements Review, which includes our Top Picks among vision supplements.

Supplements for Blood Sugar?

June 07, 2024

Recent studies suggest that Reducose, a white mulberry extract, and Jinlida, a traditional Chinese medicine, may help with blood sugar control. Learn more in our article about supplements for lowering blood sugar.

Melatonin & Vision

June 07, 2024

A strong link between melatonin use and lower risk of age-related macular degeneration was shown in a large U.S. study. For details, see the What It Does section of our Melatonin Supplements Review, which includes our Top Picks for melatonin.

Oral B-12 for Deficiency?

June 07, 2024

Can taking vitamin B-12 by mouth treat B-12 deficiency, or are injections necessary? Find out what a recent study showed in the Oral B-12 vs Injection section of our B Vitamin Supplements Review, which includes our Top Pick for high-dose B-12.

Supplements & Travel

June 07, 2024

Planning to travel? See our tips on supplements when traveling.

Blood in Urine?

June 07, 2024

Can vitamin C or other supplements cause blood in the urine and painful urination? See our answer.

Avoiding Pesticides on Fruit & Veggies

June 07, 2024

Find out which fruits and vegetables have the most pesticides even after washing, and what to do about it, in our article about cleaning produce.

How Often to Take Iron?

June 11, 2024

Is it better to take iron daily or several times per day for iron deficiency anemia? See what a recent study found in the How Much and When to Take section of our Iron Supplements Review, which includes our Top Picks among iron supplements.

Folic Acid vs Folate?

June 11, 2024

There are important differences between folic acid and folate. Get the details in our new article about folic acid and folate.

Are Water Flossers Better?

June 11, 2024

Find out if water flossers (e.g., Waterpik) are better than using string floss in our article about toothpaste and other dental products.

Magnesium for Dental Implants?

June 11, 2024

Does taking magnesium improve the outcomes of dental implant placement? Find out what a recent study showed in the Bone Health section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.

Xylitol & Heart Risk

June 11, 2024

The sweetener xylitol was recently linked with an increased risk of heart attacks, stroke, and death, although this does not prove cause-and-effect. Get the details in our article about sugar substitutes, which includes information about xylitol and 15 other low-calorie sweeteners.

Response to CL's Ashwagandha Results

June 11, 2024

The seller of an ashwagandha that failed to pass our recent Review claims that our test of its product was deficient and threatens action if we don’t remove the findings. See the Update in the Ashwagandha Review, which includes our Top Picks for ashwagandha, for details.

Vitamin A Caution During Pregnancy

June 14, 2024

Women who are pregnant are being advised to minimize intake of vitamin A in the retinol form (as found in some supplements and in liver), as discussed in the Concerns & Cautions section of our Vitamin A Supplements Review.

B-12 for Vegans

June 14, 2024

What happens when a vegan stops supplementing with B-12? Find out in the Vegan section of our B Vitamin Supplements Review. Also see our Top Picks for B-12 and other B vitamin supplements.

Probiotic for Bone Loss?

June 14, 2024

Did taking a probiotic reduce loss of bone mineral density in older women? Find out in the Bone density and fractures section of our Probiotic Supplements Review, which includes our Top Picks among probiotics.

Also see: Do any supplements or diets help prevent or treat osteoporosis?

Is Xylitol in Toothpaste Unsafe?

June 14, 2024

Use of Xylitol was recently linked with increased risk of heart attacks, stroke, and death, but does xylitol in toothpaste or salivary stimulants for dry mouth pose a concern? Find out in our article about toothpastes and other dental products, which inlcudes our Top Picks.

Also, find out if intake of regular sugar has been linked with heart-related concerns.

Tick and Mosquito Repellents

June 14, 2024

Are petroleum distillates (which can be toxic) used in insect repellents and insecticides? Find out in our article about insect repellents, which includes our Top Pick insect repellent (for skin) and insecticide (for clothing and gear).

Olive Oil Ratings

June 14, 2024

How do ConsumerLab’s ratings of extra virgin olive oils compare to those by Consumer Reports? Find out in the What CL Found section of our Extra Virgin Olive Oil Review, which includes our Top Picks among extra virgin olive oils.

Do Probiotics Contain Claimed Strains?

June 14, 2024

Genetic testing of popular multi-strain probiotic supplements determined how many did or did not contain their listed strains (product names were, unfortunately, not published). For details, see the Quality Concerns section in our Probiotic Supplements Review, which includes our Top Picks among probiotics.

Mouthwash Caution

June 18, 2024

A popular alcohol-containing mouthwash increased the abundance of cancer-related bacteria in the mouth. Get the details in the Mouthwash section of our article about toothpaste and other dental products, which includes our Top Pick mouthwash for bleeding gums.

Mycotoxins in Coffee?

June 18, 2024

Are popular brands of premium, organic coffee in the U.S. contaminated with mycotoxins, mold or yeast? Find out what a recent study found in our article: Is it true that most coffee is contaminated with mold?

Phthalates in Coconut Oils

June 18, 2024

A recent study detected phthalates (plasticizer chemicals) in popular coconut oils, most of which were labeled as organic. Get the details by brand, and find out if you should be concerned, in the Quality Concerns section of our Coconut Oil and MCT Oil Review, which includes our Top Picks among coconut and MCT oils.

Also see how this compares to amounts of phthalates recently found in extra virgin olive oils.

Curcumin for Fatty Liver?

June 18, 2024

Does curcumin reduce liver inflammation and scarring in people with advanced fatty liver disease? Find out in the Fatty Liver Disease section of our Turmeric and Curcumin Supplements and Spices Review, which includes our Top Picks for curcumin and turmeric.

Nicotinamide Riboside for Peripheral Artery Disease?

June 18, 2024

Does taking nicotinamide riboside improve physical capabilities in people with peripheral artery disease? Find out what a recent study found in the Nicotinamide riboside section of our NAD Booster Supplements Review, which includes our Top Picks among products.

Supplements for Sleep

June 18, 2024

Which supplements can improve sleep and which may cause insomnia? Find out in our article about supplements for sleep.

Cooking and Frying With Olive Oil

June 18, 2024

Does cooking or frying with olive oil reduce its potential health benefits? Find out in our article about cooking and frying with olive oil. Also see our Top Picks among extra virgin olive oils.

Water Pitcher Filters Compared

June 21, 2024

Recent tests of Aquagear, Brita, Clearly Filtered, and Zerowater filter pitchers revealed big differences in how well they remove PFAS ("forever chemicals") from tap water. Get the details in the Top Picks section of our Water Filter Pitchers Review.

Glycine Top Choice?

June 21, 2024

We were asked by a CL member for our top choice among glycine supplements. We have not tested glycine supplements, but we reviewed products on the market to suggest what appear to be good choices. See our top choices for glycine and learn more about it in our article about glycine.

Unlisted Plants in Herbal Supplements?

June 21, 2024

A DNA analysis of herbal supplements in 2013 suggested that many contained plants not listed on labels. However, some of those findings seem to have been made-up, according to a recent investigation. For details, see the update in the St. John’s Supplements Review.

Constipation & Supplements

June 21, 2024

See which supplements can help relieve constipation and which can worsen it. We've added a new warning about the use of senna laxatives.

Olive Oil "Not Fit for Consumption"

June 21, 2024

Some extra virgin olive oils were considered "lampante" (not fit for human consumption) by our taste tester. A CL member asked if these pose a health risk. No, they don't, but for more about what it means, see the Quality Concerns section of our Extra Virgin Olive Oil Review, which includes defects found and our Top Picks.

L-Arginine Caution

June 25, 2024

Be aware that L-arginine can cause irritation and inflammation of the esophagus and mouth based on the type of product used and how it is taken. Learn how to avoid this in the ConsumerTips section of our L-Arginine Review, which includes our Top Picks for L-arginine.

Coffee Pods & Mold

June 25, 2024

Is there a risk of mold in coffee from using old coffee pods? Find out in our article about contamination of coffee with mold.

"Double" Filtering Water?

June 25, 2024

We were asked if it is “overkill” to use a Brita filter on water already filtered by a reverse osmosis system. See our answer in the ConsumerTips section of our Water Filter Pitcher Review, which includes our Top Picks among water filter pitchers.

Ashwagandha for Cognition?

June 25, 2024

Does taking ashwagandha improve cognition or reduce fatigue? See what a recent study found in the What It Does section of our Ashwagandha Supplements Review, which includes our Top Picks among ashwagandha supplements.

Is Molasses Better Than Sugar?

June 25, 2024

Is molasses, including blackstrap molasses, better for you than sugar? Find out in our article about sugar substitutes.

How to Wash Produce

June 25, 2024

Is it okay to wash fruits and vegetables with bleach, sanitizers, or disinfectants? Find out in our article about fruit and vegetable "washes."

Peelu Chewing Gum?

June 28, 2024

Peelu Chewing Gum claims to be helpful for “cleansing and whitening” your teeth, but does it work? Find out in our article about toothpaste and other dental products.

Lead in Black (Cumin) Seed?

June 28, 2024

Does black seed (black cumin) contain lead? Find out what’s known about this in the Safety section of our article about black (cumin) seed oil.

Propolis for Fatty Liver?

June 28, 2024

Does supplementing with propolis (a waxy substance in bee hives) improve liver health among people with fatty liver disease? Find out what a study showed in our article about supplements for fatty liver disease.

Chelation Products?

June 28, 2024

Are over-the-counter chelation products, such as Detoxamin, safe and effective for removing heavy metals from the body? Find out in our article about detox supplements.

Has PUR Water Filter Changed?

June 28, 2024

A ConsumerLab member asked if the current PUR 7-Cup Water Filter Pitcher is different from what we tested 2020, so we put the question to PUR. See their answer in our Water Filter Pitcher Review, which includes our Top Picks among water filter pitchers.

Beetroot for Blood Pressure?

June 28, 2024

Did taking beetroot extract decrease blood pressure among healthy older men and women? See what a recent study found in our article about beetroot juice and supplements.

Also see how the nitrate content in popular beetroot products compare, and learn about potential side effects and interactions with beetroot.

PQQ for Cognition?

June 28, 2024

Did taking PQQ (pyrroloquinoline quinone) improve memory or cognitive function in people with mild cognitive impairment? Find out what a recent study showed in the Memory and Cognition section of our PQQ Supplements Review, which includes our Top Picks among PQQ supplements.

Why Take a Multivitamin?

June 28, 2024

A recent study found that taking a daily multivitamin was not associated with a lower risk of death in subsequent years. So, are there benefits to taking a multivitamin? Find out in the What They Do section of our Multivitamin and Multimineral Supplements Review, which includes our Top Picks among multis for men, women, and children.

July

Ashwagandha Concern

July 02, 2024

A CL member reported significant side effects with an ashwagandha extract from a well-known brand. Get the details in the Update to our Ashwagandha Supplements Review, which includes our Top Picks for ashwagandha.

How to Avoid Counterfeit Supplements

July 02, 2024

We now have information about how to safely purchase supplements -- and avoid counterfeits -- for 65 popular brands. See our article: Where to Safely Buy Real Vitamins and Supplements.

Broccoli for Knee Pain?

July 02, 2024

Does regularly eating broccoli soup reduce the pain of knee osteoarthritis? See what a recent study found in our updated article about supplements for arthritis.

Rhubarb for Constipation?

July 02, 2024

Can rhubarb root relieve constipation and is it safe? Find out in our article about supplements and foods for constipation.

"Hazardous" Vitamins and Minerals?

July 02, 2024

Find out why vitamins and minerals labeled as "hazardous" on safety data sheets can generally be safe to use in supplements.

Herbal Supplement Study Retracted

July 08, 2024

A DNA study that suggested widespread problems with herbal supplements has been retracted. Get the details in our St. John’s Wort Supplements Review.

Toothpaste Skin Reaction

July 08, 2024

Be aware that a variety of compounds in toothpaste have been linked with allergic skin reactions around the lips, according to a recent report. Get the details in our article about toothpaste and other dental products.

EpiCor for Colds and Flu?

July 08, 2024

Did taking EpiCor, a "postbiotic" supplement, reduce cold and flu symptoms when given during cold and flu season? Find out what a recent study showed in the Postbiotics section of our Probiotic Supplements Review.

Also see: Do any supplements help prevent or treat a cold?

Beetroot Safety?

July 08, 2024

Are there risks from large amounts of nitrates in some beetroot products? Find out in our article about the potential health benefits and safety of beetroot juice and supplements.

Alpha-Lipoic Acid & Low Blood Sugar

July 09, 2024

Although rare, alpha-lipoic acid may trigger an autoimmune condition that causes low blood sugar, as highlighted in a recent case. Learn more in the Concerns and Cautions section of our Alpha-Lipoic Acid Supplements Review, which includes our Top Picks among alpha-lipoic acid supplements.

Sulforaphane (from Broccoli)

July 09, 2024

A ConsumerLab member brought our attention to a "Sulforaphane" supplement that may provide a lot less sulforaphane than listed on its label. See the Update in our article about supplements for memory.

Prevagen Lawsuit

July 10, 2024

A federal judge recently approved a jury’s finding of fraudulent and deceptive statements in the marketing of Prevagen – a supplement promoted for memory improvement. For details see our article about Prevagen.

OTC Hearing Aids

July 11, 2024

Hearing aids can be purchased over the counter and self-fitted, but are users as satisfied as people fitted by an audiologist? See what a recent study showed after eight months of use in our article about OTC hearing aids.

Bottled Water & Teeth

July 11, 2024

Some popular brands of bottled water may be acidic enough to contribute to enamel demineralization, according to a recent study. Get the details by brand and learn which other beverages may be harmful to teeth in our article about other beverages may be harmful to teeth.

Beetroot & Thyroid Function

July 11, 2024

Does drinking beetroot juice reduce thyroid function? Find out what a study showed in the Concerns and Cautions section of our article about beetroot juice and supplements.

Glucosamine & Cancer Risk?

July 11, 2024

Is the use of glucosamine associated with the risk of developing cancer? See what a recent study found in the What It Does section of our Joint Health Supplements Review. Also see our Top Picks for glucosamine and other joint health supplements.

Gas & Prebiotics

July 15, 2024

Find out who is most likely to suffer gastrointestinal discomfort when taking a prebiotic supplement, and what to do about it, in the Cautions and Concerns section of our Prebiotic Supplements Review, which includes our Top Picks among prebiotics.

Cocoa & Afib

July 15, 2024

Did high-flavanol cocoa supplementation impact the risk of developing atrial fibrillation, a heart rhythm disorder, in a major study? Find out in the Cardiovascular effects section of our Dark Chocolate and Cocoa Review, which includes our Top Picks among dark chocolates and cocoa powders, supplements and nibs.

Kiwi for Constipation?

July 15, 2024

Eating kiwi fruit may slightly help with constipation, but can a kiwi fruit supplement help? See what a recent study found in our article about supplements that may help or worsen constipation.

Supplement Protects Retina

July 17, 2024

An antioxidant supplement can significantly slow the progression of advanced age-related macular degeneration of the retina, according to a major study. Get the details and see which supplement is our Top Pick for this in our Vision Supplements Review.

Overactive Bladder & Supplements

July 18, 2024

Find out if supplements are recommended for symptoms of overactive bladder (OAB) in our article about supplements for nighttime urination.

Fatty Liver: Does Vitamin E or DHA Help?

July 18, 2024

Does taking high-dose vitamin E or the omega-3 fatty acid DHA reduce liver fat in people with fatty liver disease? Find out what a recent study showed in the Liver disease section of our Vitamin E Supplements Review.

Also see out article: Do any supplements help with fatty liver disease? Are some diets more beneficial than others?

Black Currant for Osteoporosis Prevention?

July 18, 2024

Does supplementing with black currant fruit extract improve bone mineral density in peri- and postmenopausal women? Find out what a recent study showed in our article about supplements and diets for osteoporosis.

Red Light Devices – More Answers

July 18, 2024

We've added more information to our recent article about red near infrared light devices about based on questions received:

Vitiligo: Does red light help with vitiligo?
Eye conditions: Is red light effective and safe for treating eye conditions , such as macular degeneration?
Joint Pain: Is Move+ Pro by Kineon cleared by the FDA for reducing joint pain?
Cleared by FDA? What is the difference between a device that has been "cleared" by the FDA as opposed to "approved" by the FDA?
Product status: What is the FDA status of Omnilux Contour Face Mask, TenDlite, PainAway, and FibroLux?
Devices vs. Sunshine? Since sunshine includes the wavelengths from red and near infrared light devices, why not just get sun exposure?

CoQ10 for Statin-Related Weakness?

July 22, 2024

Cholesterol-lowering statin drugs can cause weakness in some people. Lowering the statin dose can sometimes help, and doing so along with taking CoQ10 may be even more helpful according to a recent study. Get the details in the Muscle pain section of our CoQ10 and Ubiquinol Supplements Review, which includes our Top Picks for CoQ10.

Quercetin for Fatty Liver?

July 22, 2024

Can taking quercetin reduce liver fat in people with fatty liver disease? Find out what a recent study showed in the What It Does section of our Quercetin Supplements Review, which includes our Top Picks for quercetin.

Also see: Do any supplements help with fatty liver disease? Are some diets more beneficial than others?

Possible Risk With Beetroot

July 22, 2024

Beetroot supplementation may have caused adverse reactions in two men performing underwater diving. Get the details and learn about other potential safety concerns in our article about beetroot juice and supplements.

Betaine for Reflux?

July 22, 2024

Does betaine hydrochloride reduce acid reflux (heartburn) and is it safe? Find out in our article about supplements that may help or worsen acid reflux.

Also see our tests and Top Picks among alginate supplements which may help with acid reflux.

Ocuvite for Macular Degeneration?

July 22, 2024

Do Ocuvite supplements provide the same ingredients shown to slow the progression of macular degeneration? Find out in our Vision Supplements Review.

Near Infrared Light for Cognition?

July 22, 2024

Find out if near infrared (NIR) light therapy improved cognitive function in healthy people or those with dementia in our article about red and NIR light therapy.

Also, learn whether red light therapy is beneficial for actinic keratosis (scaly patches on the skin caused by long-term sun exposure).

Statin Interaction With Herb

July 25, 2024

An herb often promoted for libido may negatively interact with some statins and other medications. Get the details in the Concerns and Cautions section of our Sexual Enhancer Supplements Review.

Lead in Cinnamon

July 25, 2024

Another brand of cinnamon has been found to be contaminated with very high levels of lead. Get the details in the Quality Concerns section of our Cinnamon Review, and see our Top Picks among cinnamon supplements and spices (which we tested for lead as well as other toxic heavy metals and potential contaminants.)

Whitening Toothpaste vs. Gel

July 25, 2024

Can toothpastes containing hydrogen peroxide whiten teeth as effectively as a whitening gel? Find out what a recent study showed in the chemical whiteners section of our article about toothpastes and other dental products, which includes our Top Pick whitening toothpaste and Top Pick whitening strip.

Beta-Alanine for Exercise Performance?

July 25, 2024

Does supplementing with beta-alanine improve exercise performance or reduce fatigue following high-intensity interval training? Find out what a recent study showed in the "Is Beta-alanine Better than Carnosine?" section of our article about Carnosine.

Light Therapy for Plantar Fasciitis?

July 25, 2024

Does light therapy reduce pain and improve function for people with plantar fasciitis, a common cause of foot pain? Find out our article about red and near infrared light therapy?

Caution with ZMA

July 25, 2024

Zinc magnesium aspartate (ZMA) is promoted among athletes for improving athletic performance and regulating sleep, but this supplement may actually reduce sleep time, according to a recent study. Get the details in the Concerns and Cautions section of our Magnesium Supplements Review which includes our Top Picks among magnesium supplements.

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2024

January

Probiotics in Hot Tea?

January 05, 2024

Vitamin D For Cough & Colds?

January 05, 2024

Vitamin K2 & Breast Cancer

January 05, 2024

PEA & Thyroid Function

January 05, 2024

Getting C15:0 Fatty Acid from Food?

January 05, 2024

How to Identify Produce That's Coated?

January 09, 2024

Xylitol and Blood Sugar

January 09, 2024

Ceramides and Blood Pressure?

January 09, 2024

Probiotic for Gout?

January 09, 2024

High-Dose Fish Oil for Heart Attack Recovery?

January 09, 2024

BPA & Phthalates in Canned Fish?

January 09, 2024

Oats vs Supplement for Cholesterol?

January 09, 2024

ConsumerLab Finding Prompts Recall

January 12, 2024

Comparison of Pine Bark Extracts

January 12, 2024

Pricey Toothpaste for Gum Health?

January 12, 2024

Shilajit for Collagen and Bone?

January 12, 2024

How to Take C15:0 Fatty Acid

January 12, 2024

L-Theanine for Fatigue?

January 12, 2024

Fish Oil Plus Statins?

January 16, 2024

Dark Chocolate for Focus?

January 16, 2024

A Better Ashwagandha Extract?

January 16, 2024

Trigonelline?

January 16, 2024

Lysine for Sleep?

January 16, 2024

Premen-Calm for PMS?

January 16, 2024

How to Store Protein Powder

January 19, 2024

Protein Powder Allergy?

January 19, 2024

Pycnogenol for Hearts and Eyes?

January 19, 2024

Risks with Plant-Based Milks for Young Children

January 19, 2024

Hyaluronic Acid for Joint Pain?

January 23, 2024

Melatonin for Brown Patches?

January 23, 2024

Chamomile and Bleeding Risk?

January 23, 2024

Best Colostrum?

January 23, 2024

Multivitamin for Memory?

January 23, 2024

Is Protein Powder Ultra-Processed?

January 23, 2024

Is Manuka Honey Safe?

January 23, 2024

Help for Stressed Dogs?

January 25, 2024