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2020

April
Dark Chocolate for Memory? -- (4/5/2020) Studies show that chocolate high in flavanols can improve cognition in people with cognitive decline. Can it also boost memory in people who are cognitively healthy? Find out in the Memory section of the Dark Chocolate and Cocoa Powders Review. Also see our Top Picks for dark chocolates and cocoa powders.

March
Is Quercetin Safe? -- (3/31/2020) Quercetin has been proposed as a treatment for a range of medical conditions, including COVID-19, but is it safe? Find out what studies have found, including results of a recent, small clinical trial, in the Concerns and Cautions section of the Quercetin Supplements Review. Also see our Top Picks for quercetin.
Chia for Obesity? -- (3/31/2020) Chia seeds are highly nutritious and rich in fiber, but can they help with weight management? Find out what studies are showing, including a recent clinical trial among obese children, in the What It Does section of the Chia Seed Review. Also see our Top Picks for chia seed products.
Collagen for the Skin -- (3/28/2020) Supplementing with collagen to improve aging skin is popular, but does it work? The latest study with collagen used a higher dose than other studies, but is a higher dose better? Find out in the What It Does section of the Collagen Supplements Review. Also see our Top Picks for collagen for wrinkles and for osteoarthritis.
Another Case of Liver Injury With Turmeric -- (3/25/2020) Although believed to be rare, we've been reporting a steady stream of cases of liver injury (hepatitis) with turmeric supplements. Learn the symptoms and read the latest in the Concerns and Cautions section of the Turmeric and Curcumin Supplements Review.
Surprising Role of Potassium in COVID-19 -- (3/25/2020) New research out of China suggests that many patients hospitalized with COVID-19 are low in potassium. For details see the information about Potassium in our answer to the question: What are natural remedies for coronavirus (COVID-19)? Do supplements like zinc, vitamin C, or herbals work?
CoQ10 Bioavailability -- (3/21/2020) CoQ10 is not well absorbed unless taken with fats or oils, such as with a meal. Bioavailability-enhanced formulations allow CoQ10 to be taken without a meal, but how good are they? We've added new information about one such formula and how it compares to taking regular CoQ10 in the Absorption and Bioavailability Enhancers section of the CoQ10 and Ubiquinol Supplements Review. Also see our Top Picks for CoQ10 and ubiquinol.
When to Eat Protein -- (3/21/2020) Some evidence indicates that it is best to distribute protein across meals throughout the day to maximize protein production in muscle. A recent study suggests that there is one meal when protein intake could be higher for nearly everyone, and there is another meal when older people particularly fall short. For details see the When to Take section of the Protein Powder and Drinks Review. Also see our Top Picks for protein powders and drinks.
EPA vs. DHA from Fish Oil -- (3/18/2020) Some marine-based oils are higher in either EPA or DHA — key omega-3 fatty acids -- but does it matter? See what a recent study found in the What to Consider When Buying section of the Fish and Marine Oil Supplements Review. Also see our Top Picks among fish and marine oils.
How Long Does Coronavirus Last On Surfaces? -- (3/17/2020) We've added new information about how long the coronavirus might last on packaging, and how this varies greatly depending on the package material, in our answer to the question: Can I get the new coronavirus (2019-nCoV) from supplements from China?
Does CoQ10 Help With Statins? -- (3/10/2020) Many studies have looked at whether or not CoQ10 helps people with statin-associated muscle pain. Read the latest in the What It Does section of the CoQ10 and Ubiquinol Supplements Review. Also see our Top Picks for CoQ10 and ubiquinol supplements.
Staying Safe With Green Tea -- (3/10/2020) If you use a green tea extract (alone or as part of a supplement formula), it is important to take it with food according to several reports, as explained in the Concerns and Cautions section of the Green Tea Review. Also see our Top Picks for green tea in bags, loose, as matcha powder, and in other forms.
Fish Oil and Heart Disease -- (3/7/2020) Many studies have assessed the potential benefits of taking fish oil supplements. Results have been conflicting, but one of the largest and longest-term studies was recently published. See what it found in the What It Does section of the Fish Oil Supplements Review. Also see our general recommendations for using fish oil for heart health and check out our Top Picks for fish oil supplements.
Olive Oil and Heart Disease -- (3/7/2020) Does consuming olive oil instead of butter or margarine reduce the risk of heart disease? Find out what studies are showing, and the amounts of olive oil being used, in the What It Does section of the Olive Oil Review. Also see our Top Picks for olive oil.
Melatonin and Cataracts -- (3/7/2020) Do you have cataracts (clouded lenses of the eye)? A recent study suggests that having them removed and replaced with a certain type of intraocular lens may increase natural melatonin production. For details, see the ConsumerTips section of the new Melatonin Supplements Review. Also see our Top Picks among melatonin supplements.
Do Glucosamine & Chondroitin Work? -- (3/3/2020) After reviewing the clinical literature regarding glucosamine and chondroitin for osteoarthritis, an expert group drew conclusions regarding their efficacy. Find out what they concluded in the What It Does section of the Joint Health Supplements Review. Also see our Top Picks for glucosamine, chondroitin and other joint health supplements.

February
How Much Sun for Vitamin D? -- (2/29/2020) Is sun exposure to the hands, arms, and legs enough to boost or maintain adequate vitamin D levels? See what a recent study showed in the Getting Vitamin D from Sunlight section of the Vitamin D Supplements Review. Also see our Top Picks for vitamin D.
Breast Cancer & Milk Consumption -- (2/29/2020) Is drinking milk — dairy or soy — associated with breast cancer risk? Find out what a new study found in our answer to the following question: Are there vitamins or supplements that can reduce my risk of breast cancer? Do any increase cancer risk?
Biotin May Skew Many Blood Tests -- (2/29/2020) If you take a high-dose biotin supplement, be aware of the growing list of blood tests with which it may interfere. See the latest information in the Biotin section of the B Vitamin Supplements Review.
Does Ashwagandha Lower Stress? -- (2/25/2020) A widely available ashwagandha extract was recently tested for its ability to reduce stress, at two different doses. Find out if either worked in the What It Does section of the Ashwagandha Supplements Review. Also see our Top Pick for ashwagandha.
Cognitive Impairment From B12 Deficiency -- (2/25/2020) Vitamin B12 deficiency can cause a wide range of symptoms. This includes cognitive impairment, as shown in a recent case. For details about the symptoms of B12 deficiency see the B12 section of the B Vitamin Supplements Review. Also see our Top Picks for B12 and other B vitamin supplements.
Vitamin D for Mom Affects Baby's Bones -- (2/25/2020) Taking high-dose versus very-low-dose vitamin D during pregnancy led to greater bone density in offspring, according to a recent study. But, there are important caveats. Get the details in the What It Does section of the Vitamin D Supplements Review. Also see our Top Picks for vitamin D.
Saffron for Better Sleep? -- (2/18/2020) A recent, preliminary study suggests that saffron may help with sleep. Get the details plus information about other supplements that may help or interfere with sleep, in our answer to the question: Which supplements can help me sleep?
Vitamin K for Bone Density? -- (2/18/2020) Vitamin K (as MK-7) was given daily for one year to older men and women to see if it would improve bone mineral density. Some also received vitamin D and calcium. Find out if it helped, as well as the results of related studies, in the What It Does section of the Vitamin K Supplements Review. Also see our Top Picks among vitamin K supplements.
Collagen for Sun Damaged Skin? -- (2/15/2020) A study suggests that fish-derived collagen can improve sun-damaged skin. For details, including dosage, see the What It Does section of the Collagen Supplements Review. Also see our Top Picks for collagen.
Cocoa for Artery Disease? -- (2/15/2020) People with peripheral artery disease often have trouble walking. Can flavanol-rich cocoa help? Find out what a recent study showed in the What It Does section of the Cocoa and Dark Chocolates Review. Also see our Top Picks for cocoas, chocolates, chips, nibs, and cocoa supplements.
Help for Substance Abuse? -- (2/15/2020) There is preliminary evidence that high-dose CBD may help people with substance abuse disorder. For details, see the What It Does section of the Review. Also see our Top Picks among products.
Vitamin B12 and Risk of Death -- (2/11/2020) A study found higher blood levels of vitamin B12 to be associated with an increased risk of death -- suggesting caution when supplementing. For details, see the B-12 section of the B Vitamin Supplements Review. If you do need to supplement with B12, see our Top Pick among products.
Vinegar Makes Grilling Safer -- (2/11/2020) Grilling food can create cancer-causing compounds, but a study shows that vinegar can help. Find out how in the What to Consider When Using section of the Apple Cider Vinegar Review. Also see our Top Picks for apple cider vinegar.
Fish Oil for Diabetes? -- (2/11/2020) There is mixed evidence as to whether fish oil helps people who have diabetes. Get the details, including those of a new study, in the What It Does section of the Fish Oil Supplements Review. Also see our Top Picks for fish oil.
Vitamin C & Lungs -- (2/11/2020) Supplementing with vitamin C to correct deficiency can reverse a form of lung disease, as exemplified in a recent report. For details, see the What It Does section of the Vitamin C Supplements Review. Also see our Top Picks for vitamin C.
Red Yeast Rice and Diabetes? -- (2/8/2020) The use of statin drugs, like lovastatin (Mevacor) is associated with an increase in the risk of developing diabetes. But does red yeast rice carry the same risk? See what a large study found in the Concerns and Cautions section of the Red Yeast Rice Review. Also see our Top Pick for red yeast rice.
Glucosamine and Blood Sugar -- (2/8/2020) Glucosamine (used to treat osteoarthritis) is a type of sugar, so does its daily use affect blood sugar levels and one's risk of developing diabetes? Find out in the Concerns and Cautions section of the Joint Health Review. Also see our Top Picks for Glucosamine, Chondroitin, MSM, and Boswellia supplements.
Vitamin D for Hives -- (2/8/2020) If you suffer from chronic hives (or chronic urticaria) and are deficient in vitamin D, taking vitamin D may be helpful, according to a new study. (Vitamin D may also be helpful for other skin conditions such as eczema and psoriasis.) Get the details in the What It Does section of the Vitamin D Supplements Review. Also see our Top Picks for vitamin D.
Avoid Quality Problems With Fish Oil -- (2/7/2020) Nearly half of 17 popular fish oil supplements tested in a recently published study did not meet at least one of the quality criteria for freshness or content. Interestingly, two that passed testing were Approved by ConsumerLab, but none that failed were CL Approved. For details, see the Quality Concerns section of the Fish Oil Supplements Review. Also see our Top Picks for fish and marine oils.
Berberine vs. Colon Cancer? -- (2/4/2020) A large study investigated the potential for berberine (promoted for blood sugar control) to prevent precancerous colon polyps. Find out if it worked in the What It Does section of the Berberine & Goldenseal Supplements Review. Also see our Top Pick for berberine.
Problems With Huperzine A -- (2/4/2020) A recent analysis of supplements claiming to contain huperzine A (promoted for memory enhancement) found problems with most products. For details see the Concerns and Cautions section of the Huperzine A Supplements Review. Also learn what clinical studies have shown with huperzine A in the What It Does section and see which huperzine A supplements have been Approved by CL.
Collagen for Knees? -- (2/1/2020) Collagen supplements have been tested in many studies to reduce pain and/or improve function in osteoarthritic knees. A recent study focused on collagen peptides. Find out if they worked (and see the results for other collagen products) in the Joint Pain section of the Collagen Supplements Review. Also see our Top Picks for collagen supplements for joint pain and for wrinkles.
Pomegranate for Memory? -- (2/1/2020) Pomegranate juice and supplements have been promoted for improving cardiovascular health, controlling blood sugar, and inhibiting prostate cancer. Most recently pomegranate juice was tested in a year-long study for its effects on memory. Find out if it helped, and see if it works for other touted uses, in the What It Does section of the Pomegranate Juice and Supplements Review Article.

January
Not Enough Vitamin C -- (1/31/2020) Vitamin C deficiency is known to cause scurvy, characterized by bleeding gums and other connective tissue problems. But vitamin C deficiency was recently reported to cause a very different array of symptoms in several people. Learn more in the What It Does section of the Vitamin C Supplements Review. Also see our Top Picks for vitamin C.
When Magnesium Doesn't Seem to Help -- (1/28/2020) Getting the recommended amount of magnesium has been associated with bone benefits. However, there was an increased risk of hip fracture among people who used a particular form of magnesium, according to a recent analysis. Get the details in the What It Does section of the Magnesium Supplements Review. Also see our Top Pick for magnesium.
How to Use Zinc Lozenges for Colds -- (1/28/2020) Zinc lozenges have been shown to reduce cold symptoms, but effectiveness appears to depend on the lozenge formulation and how it is used. Learn more in the What It Does section of the Zinc Supplements and Lozenges Review. Also see our Top Picks for zinc lozenges and pills.
Is Melatonin Safe for Children? -- (1/28/2020) Find out what side effects melatonin had when taken for up to two years by children and adolescents in a small study. See the What It Does section of the Melatonin Supplements Review. Also see our Top Pick for melatonin.
Best Way to Cook With Olive Oil -- (1/25/2020) Cooking can reduce levels of heart-healthy polyphenols in extra virgin olive oil (EVOO), but a new study showed how to minimize this loss. Get the details in the ConsumerTips section of the Extra Virgin Olive Oil Review. Also see our Top Picks among extra virgin olive oils.
Stevia vs. Sugar for Hunger Suppression -- (1/25/2020) How does the non-caloric sweetener stevia compare to sugar in suppressing hunger before a meal? Find out in our updated answer to the question: What are the health benefits of stevia? Is it safe?
Coconut Oil Impact on Cholesterol -- (1/21/2020) Coconut oil can significantly affect cholesterol levels according to a new report. Get the details in the Concerns and Cautions section of the Coconut & MCT Oils Review. Also see our Top Picks for coconut and MCT oils.
Fish Oil & Fertility -- (1/21/2020) Is there a relationship between taking fish oil and sperm count? See what a recent study in men found in the What It Does section of the Fish Oil Review. Also see our Top Picks for fish oil.
Fish Oils Not Equal on Cardio Benefit -- (1/18/2020) High-dose, highly-concentrated fish oil is known to lower triglycerides in people with elevated levels. One prescription product was even shown to lower the risk of cardiovascular events in such people. However, a clinical trial of another fish oil was recently stopped due to its low likelihood of providing this benefit. Learn how these products differ and how fish oil supplements compare to them in the Prescription Fish Oil vs. Supplements section of the Fish Oil Review. Also see our Top Picks for fish oil and other marine omega-3 supplements.
PQQ for Athletic Endurance? -- (1/18/2020) We've added information from a recent study of PQQ for athletic endurance to our answer to the question: What is PQQ? Does it help with aging and memory? Is it similar to CoQ10?
Vitamin D & Bone Density -- (1/14/2020) Does taking vitamin D improve bone mineral density in older men and women who are not deficient in vitamin D? See what a major study found in the Bones and fractures section of the Vitamin D Supplements Review. Also see our Top Picks for vitamin D.
Tea & Heart Disease -- (1/14/2020) Another study shows that people who drink tea are less likely to suffer from cardiovascular disease. Find out how much and what type of tea was associated with benefits in the Cardiovascular disease section of the Green Tea Review. Also see our Top Picks for green tea.
Magnesium for Leg Cramps? -- (1/14/2020) Magnesium if often touted for treating leg cramps. Does it really work? See what studies have shown, including a recent study among pregnant women, in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks for magnesium.
Collagen vs. Whey for Muscle -- (1/12/2020) Does taking collagen protein increase muscle as well as whey protein? Find out what a recent study showed in the "Building Muscle" sections of both the Protein Powders Review and the Collagen Supplements Review. Also see our Top Picks for protein powders and Top Picks for collagen.
Concern With Ashwagandha -- (1/12/2020) Ashwagandha can increase thyroid hormone levels, resulting in thyroid toxicity, even in people without a history of thyroid disease. Read about a recent case and learn symptoms to look for in the Concerns and Cautions section of the Ashwagandha Supplements Review. Also see our Top Pick among ashwagandha supplements.
Risk With Supplements During Chemotherapy -- (1/11/2020) The risk of cancer recurrence and risk of death were shown to be higher when certain supplements were used by women being treated for breast cancer, according to a recent study. We've add details about this to our answer to the question: Do any supplements reduce side of effects of chemotherapy?
When to Eat Protein -- (1/7/2020) The timing of protein intake during the day was associated with greater reductions in abdominal fat and BMI (body mass index) among people engaged in exercise programs in a recent study. The timing of protein intake can also improve the likelihood of muscular benefits. For details, see the When to Take section of the Protein Powders and Drinks Review. Also see our Top Picks among protein products.
Eggshell Membrane for Hair, Skin, Nails? -- (1/7/2020) Does supplementing with eggshell membrane (which contains collagen and elastin) improve hair, skin, or nails? See what a recent study found in the What It Does section of the Collagen Supplements Review. Also see our Top Picks among collagen supplements.
Tart Cherry for Gout? -- (1/7/2020) A clinical trial checked whether or not tart cherry would reduce the number of flare-ups in people with gout. Find out if it helped in our answer to the question: What are the health benefits of tart cherry juice?
Zinc and Folate for Infertility? -- (1/7/2020) Did supplementing with zinc and folate improve semen quality and fertility for men in a recent study? Find out in the What It Does section of the Zinc Supplements Review. Also see our Top Picks among zinc supplements.
Curcumin for Blood Sugar Control? -- (1/4/2020) Preliminary research suggests that curcumin (from turmeric) taken with meals can reduce the increases in blood sugar and insulin levels that occur after eating. But does curcumin help people with pre-existing type 2 diabetes? See what a recent study found in the What It Does section of the Turmeric and Curcumin Supplements & Spices Review. Also see our Top Picks among turmeric and curcumin products.
Foods That May Help Sleep -- (1/4/2020) In addition to supplements like melatonin that can aid sleep, certain foods are associated with reduced risk of insomnia. We've added information about this to our answer to the question: Which supplements can help me sleep?
CBD Cream for Pain? -- (1/3/2020) People suffering peripheral neuropathy in their legs and feet applied CBD cream or placebo for one month. Did it help? Find out in the Topical CBD section of our CBD Review. Also see our Top Picks among creams, oils, and other CBD products.


 

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