Join FREE Newsletter

My Account Logout Contact Us Subscribe Now! Login Contact Us
Home Product Tests  Warnings  Encyclopedia News Where to Buy
 
 

Clinical Updates
Filter:   By Product Type  |  By Date    Filter:  2017  |  2016  |  2015  |  2014  |  2013  |  2012  |  2011

2017

April
Choline May Increase Heart Risk -- A recent study found that taking choline supplements increased the tendency for platelets to aggregate, a risk factor for heart disease, suggesting that choline supplements should be avoided. For details see the Concerns and Cautions section of the Choline Supplements Review >>
Olive Oil Lowers Diabetes Risk -- Consuming a certain amount of olive oil daily reduces the risk of developing type 2 diabetes by 13%, according to a new study. Consuming more than this amount did not reduce the risk further. Get the details, and see our tests of popular oils, in the "What It Does" section of the Extra Virgin Olive Oils Review >>
Niacin & Skin Cancer -- People who don't get enough niacin each day may be able to lower their risk of developing squamous cell skin cancer by getting a bit more niacin from their food or supplements suggests a recent analysis. However, this doesn't mean you should overdo it. For details, see the "Niacin" section of the B Vitamin Supplements Review. You can also find foods high in niacin using the food table in the report.
Probiotic Reduces Diabetes Risk In Pregnancy -- Taking a certain type of probiotic during pregnancy reduced the risk of gestational diabetes, according to a new study. For details see the "What It Does" section of the Probiotic Supplements Review >>
Chocolate May Reduce Diabetes Risk -- "Occasional" consumption of chocolate was associated with a lower risk of developing diabetes among certain postmenopausal women, according to new study. For details about this and other effects of chocolate, see the "What It Does" section of the Cocoa Powders, Dark Chocolate, Extracts, Nibs, & Supplements Review >>
Melatonin vs. Light Therapy for Sleep -- A recent study found that melatonin was slightly better than light therapy in helping children fall asleep. The overall results, however, may have been better with a lower dose. For details see the "What It Does" section of the Melatonin Supplements Review >>
Omega-3s for Age-Related Cognitive Decline? -- A recent study found DHA and EPA from fish oil did not slow cogntive decline in older adults with cognitive difficulties. However, other studies suggest there may be a benefit if taken before the onset of cognitive decline or dementia. For details, see the "Age-Related Cognitive Decline" section of the Fish Oil and Omega-3 Fatty Acid Supplements Review >>
Exercise Benefit Lost With High-Dose Vitamins -- Older men asked to perform resistance (strength) training for 12 weeks showed less gain in bone density if they were given high daily doses of vitamins C & E than if they were given a placebo. This is not the first time that  high-dose antioxidant supplements have been shown to reduce benefits from exercise. For details, see the "Concerns and Cautions" section of the Vitamin C Supplements Review >>
Don't Bother with High-Dose Vitamin D -- Taking a moderate dose of vitamin D (particularly if you are deficient) can be very helpful, but a growing number of studies show a lack of benefit (and some adverse effects) with high-dose vitamin D. The latest study, released this morning, focused on cardiovascular disease. For details, see the "Cardiovascular disease" section of the Vitamin D Supplements Review >>
Curcumin for Muscle Soreness? -- Several studies have evaluated curcumin to reduce muscle soreness, pain, and loss of power after exercise. The most recent study showed little benefit. For details, see the "What It Does" section of the new Turmeric/Curcumin Supplements & Spices Review >>
Vitamin D and Cancer -- Although studies have shown that sufficient vitamin D in the blood is associated with lower risk of developing and dying from cancer, a new study among women found no cancer benefit from taking vitamin D supplements. However, the study had a major weakness. For details, see the "What It Does -- Cancer" section of the Vitamin D Supplements Review >>

March
Vitamin E/Selenium & Alzheimer's -- A long-term study among men in the U.S. found that giving high doses of vitamin E and/or selenium did not significantly affect their risk of developing dementia. The study was part of a larger study which found that these supplements increased the risk of prostate cancer, type 2 diabetes, hair loss, and dermatitis. For details, see the "Alzheimer's disease/dementia" section of the Selenium Supplements Review >>
Toxin in Algae Supplements -- Some Spirulina supplements and many A. flos-aquae supplements were found to be contaminated with microcystin toxin — a liver toxin, according to a recently published study. For details, see the "Concerns and Cautions" section of the Greens and Whole Food Supplements Review >>
DHA to Boost Children's IQ? -- Supplementing with DHA during pregnancy has been touted as a way to increase the IQ of offspring, but results published this week seem to quash that hope. However, there may be other benefits, particularly for women with normally low intake of DHA, as discussed in the section "During Pregnancy: Effects on Children" in the Fish Oil and Omega-3 Fatty Acid Supplements Review >>
Right Dose of Vitamin D to Reduce Falls -- As we've reported in the past, vitamin D can reduce falls in older people, but too much can increase falls. A new study helps nail down the ideal dose and blood level to reduce falls. For details, see the "What It Does" section of the Vitamin D Supplements Review >>
DHA for Rheumatoid Arthritis? -- A new study tested DHA from microalgae as a treatment for rheumatoid arthritis. The results are mixed. For details, see the "Rheumatoid Arthritis" section of the Fish Oil and Omega-3 Supplements Review >>
Problem With Aloe Gel -- We received a report from a consumer who used a popular aloe gel on her hair, with disastrous results. The product had failed our tests for aloe and listed as "Not Approved" in our Review. For details, see the Updates near the top of the Aloe Liquids, Gels and Supplements Review >>
Tea Drinking Associated with Less Cognitive Decline -- A new study found tea drinkers to have significantly less cognitive decline than others. Read the details in the "What It Does" section of the Green Tea Supplements Review (which includes our tests of teas) >>
Anti-Inflammatory Effect of Juice Plus+? -- Chronic systemic inflammation is a risk factor for cardiovascular disease, diabetes, and cancer. A recent clinical trial assessed the product Juice Plus+ for its ability to reduce this inflammation in obese men and women. The abstract of the published study indicates that it works, but the results tell a different story. For details, see the "What It Does" section of the Greens and Whole Foods Powders, Pills, and Drinks Review (which includes our tests of products) >>
When Does Fish Oil Help the Heart? -- There are new recommendations on the use of fish oil supplements with regard to preventing heart attack, stroke, atrial fibrillation, and heart failure. More about these recommendations and other uses of fish oil are found in the "What It Does" section of the Fish Oil Supplements Review (which includes our tests of products) >>
Can High-Dose Vitamin D Backfire? -- A recent study found that taking very high doses of vitamin D increases the production of an enzyme which inactivates vitamin D in the body -- which may help to explain why taking very high-dose vitamin D has been linked with adverse effects such as muscle weakness and increased risk of fractures and falls in previous studies. For details, see the "How Much Do You Need?" section of the Vitamin D Supplements Review (which includes our tests of products) >>
Prebiotics for Appetite Control? -- A study suggests that a prebiotic supplement may be helpful for appetite control — although more research is needed. Prebiotics fuel the growth of beneficial bacteria in the gut. For more information about the study and prebiotics (including how to get prebiotics from foods), see the "Prebiotics" section of the Probiotics Supplements Review (which includes our tests of products) >>
Better Executive Functioning with Vitamin D -- Getting adequate vitamin D appears to help with executive functioning and attention in adolescents, according to a new study — similar to what has been preliminarily shown in men. For details, see the "What It Does" section of the Vitamin D Supplements Review (which includes our tests of products) >>
Probiotic for Allergy -- A recent study showed that taking a probiotic during allergy season reduced symptoms more than did a placebo — although not by much. For details, see the "What It Does" section of the Probiotic Supplements Review >>
Statin Drugs and Vitamin D -- If you take a statin drug to lower cholesterol, take note that recent studies show it is particularly important that you keep up your level of vitamin D. Also be aware that vitamin D supplements may not raise your vitamin D level quite as much as if you were not taking a statin. For details, see the "Statin Drugs and Vitamin D" section of the Vitamin D Supplements Review (which includes our tests of products) >>

February
Magnesium for Leg Cramps? -- Magnesium supplements are sometimes promoted for leg cramps. However, a recent study among older men and women found that taking a particular form of magnesium at bedtime did not reduce nighttime leg cramps. Get the details about the study, plus other uses of magnesium, in the "What It Does" section of the Magnesium Supplements Review (which includes our tests of products) >>
Timing Probiotics with Antibiotics Is Key -- Probiotics can reduce the risk of C. difficile infection due to antibiotics by nearly 70% if probiotics are started at the right time, according to a new study. Get the details in the "What It Does" section of the Probiotic Supplements Review (which includes our tests of products) >>
Lutein for Stress? -- Supplementing with lutein can help some people protect against macular degeneration of the eye. A new study suggests it may also reduce stress. For details, see the "What It Does" section of the Review of Vision Supplements with Lutein and Zeaxanthin (which includes our tests of products) >>
Does Your Multivitamin Have Too Much Folic Acid? -- Folic acid is in multivitamins because it is provides the essential B vitamin, folate. Getting too much folate, however, carries risks. What most people don't know is that you actually get 70% more folate from folic acid than labels currently reveal and many supplements expose you to amounts of folate which are not only way above what you need but over the daily limit for tolerable intake. Companies now have until mid-2018 or later correct their labels, but until then you may be in the dark.

To find out which multivitamins exceed the tolerable limit for folate, see the update in the Multivitamins Review. You'll also learn how the daily requirements for many other nutrients have changed and differ from what labels currently tell you.
Mediterranean Diet with Olive Oil Improves Depression -- A recent study found that men and women with major depression who consumed a Mediterranean diet with olive oil had significant improvement in symptoms compared to those who maintained their typical diet. Get the details in the "What It Does" section of the Olive Oil Review (which includes our tests of products) >>
Selenium and Ovarian Cancer -- A recent study found that women with the highest intakes of selenium from supplements had a much lower risk of ovarian cancer than those not getting selenium from supplements. Get the details in the "What It Does" section of the Selenium Supplements Review (which includes our tests of products) >>
Vitamin D Reduces Risk of Colds & Flu -- A study released today shows that taking vitamin D in a certain way reduces the risk of cold and flu infections by up to 70%. The benefits are greatest for people very deficient in vitamin D. For details, see the "What It Does" section of the Vitamin D Supplements Review (which includes our tests of products) >>
Probiotics and Weight? -- Several studies, including a recent one in Brazil, suggest that probiotics can help with weight reduction or other aspects of slimming. The studies published to-date, however, have limitations. For more details, see the "What It Does" section of the Probiotics Supplements Review (which includes our tests of products) >>
High-Dose Resveratrol Increases "Bad" Cholesterol -- A study of middle-aged men with metabolic syndrome found that high doses of resveratrol increased levels of "bad" LDL cholesterol. Get the details in the "What It Does" section of the Resveratrol Supplements Review (which includes our tests of products) >>
Colon Polyps and Green Tea -- A study of middle-aged men and women found that those given green tea extract after colon polyp removal were much less likely to develop additional polyps than those who did not take the extract. For details about the extract and dose, see the "What It Does" section of the Green Tea Supplements Review (which includes our tests of supplements and teas) >>
Many Benefits of Magnesium -- An analysis of studies involving more than one million people found that rates of stroke, heart failure, type 2 diabetes, and death were lower when intakes of magnesium were higher. For details see the "What It Does" section of the Magnesium Supplements Review (which includes our tests of products) >>
Caution: Turmeric Drug Interaction -- It was recently reported that a man consuming large daily amounts of turmeric experienced kidney toxicity, likely due to an interaction between turmeric and the drug he was taking. Get more details about this and other drug interactions with turmeric, curcumin, and piperine (a black pepper extract often added to curcumin supplements) in the "Concerns and Cautions" section of the Turmeric/Curcumin Supplements Review (which includes our tests of products) >>
Cognitive Decline With Too Little B6 -- A recent study among men and women in their 60's found that those getting inadequate amounts of vitamin B6 in their diets had much higher rates of cognitive decline. Get the details in the "What It Does" section of the B Vitamin Supplements Review (which includes our tests of products) >>

January
Omega-3s for Arthritis -- A review of twenty-two clinical studies using omega-3 fatty acid supplements from various marine sources (fish oil, mussel oil, etc.) found they could be effective in reducing rheumatoid arthritis pain, particularly when the oils had a certain ratio of EPA to DHA. The oils were not effective for osteoarthritis. For more details, see the "What It Does" section of the Fish Oil Supplements Review (which includes our tests of products) >>
Omega-3s for Cognitive Decline -- Daily supplementation with the omega-3s DHA and EPA modestly improved cognitive function in older men and women with mild cognitive decline. Get the details in the "What It Does" section of the Fish Oil Supplements Review (which includes our tests of products) >>
Questioning Curcumin -- A critical analysis of curcumin by several experts indicates that it may not be as useful as many believe. For more, see the "What It Does" section of the Turmeric/Curcumin Supplements Review (which includes our tests of products) >>
Fish Oil and Bleeding Risk -- A recently reported tragic case highlights the concern over taking fish oil when on a blood-thinning medication. For more information, see the "Cautions and Concerns" section of the Fish Oil Supplements Review (which includes our tests of products) >>
Reason for Olive Oil Defects? -- We recently noticed that all three of the extra virgin olive oils which failed to be Approved in our recent review share something in common. For details, see the "What CL Found" section of the Extra Virgin Olive Oil Review (which includes our tests of products) >>
Side-Effect With B-12 -- Certain formulations of vitamin B-12 contain additional ingredients that can cause diarrhea and bloating in some people — particularly if taking more than one pill. An apparent case of this was reported to us this week. To help you avoid this, read the details in the "What CL Found" section of the B Vitamin Supplements Review (which includes our tests of products) >>
Extra Virgin Olive Oil and Bone Fracture Risk -- A recent study found that higher consumption of extra virgin olive oil was associated with a 51% reduction in the risk of osteoporosis-related bone fractures. Get the details in the "What It Does" section of the Extra Virgin Olive Oil Review (which includes our tests of products) >>
Red Yeast Rice Concerns -- A review of adverse events associated with the use of red yeast rice products in Italy led researchers to suggest monitoring for signs of muscle and liver injury when using red yeast rice. For more details, see the "Cautions and Concerns" section of the Red Yeast Rice Supplements Review (which includes our tests of products) >>
Enzymes for Muscle Soreness -- A blend of enzymes reduced delayed-onset muscle soreness after exercise in healthy men. For details, see the "What They Do" section of the Digestive Enzyme Supplements Review >>
Fish Oil for Migraine -- Although the evidence to-date has been mixed on whether taking fish oil reduces migraine headaches, a recent placebo-controlled study showed a significant benefit for fish oil when taken along with a prescription medication. For details, see the "What It Does" section of the Fish Oil Supplements Review >>
Melatonin Quality Concern -- A recent Canadian study found that 71% of melatonin supplements did not contain within 10% of labeled amounts of melatonin. Certain types were more likely to be off-the-mark than others. For details, and our own tests of (U.S.) products, see the "Quality Concerns" section of the Melatonin Supplements Review >>
Potential Risk with High B-12 -- Among people who are malnourished, those with elevated vitamin B-12 levels in their blood were twice as likely to die when hospitalized as those with lower B-12 levels, according to a new study. The study authors suggest caution with inappropriate supplementation. For more details about the study, and vitamin B-12, see the B Vitamin Supplements Review >>
CoQ10 for Fibromyalgia -- CoQ10 reduced symptoms of anxiety and depression in people with fibromyalgia, according to a preliminary study. Get the details, including dosage, in the "What It Does" section of the CoQ10 and Ubiquinol Supplements Review >>
High-Dose Vitamin D Reduces Respiratory Infections, But With a Risk -- A study among older men and women found those who took high-dose vitamin D had fewer acute respiratory infections, but a greater number of falls. Get the details in the "What It Does" section of the Vitamin D Supplements Review >>
Headache and Vitamin D -- A large study of middle-aged men found that those with low levels of vitamin D in their blood were twice as likely to have frequent headaches as men with higher levels. For details, see the "What It Does" section of the Vitamin D Supplements Review >>
Reducing Asthma Risk in Children With Fish Oil -- A major new study showed that giving fish oil to pregnant women reduces the risk of asthma and wheezing in their offspring. For details, see the "What It Does" section of the Fish Oil Supplements Review >>
Supplement vs. Prescription Fish Oil? -- As we have written before, by choosing an extremely concentrated fish oil supplement, you can get essentially the same type of fish oil as you would get from a prescription fish oil. But according to a recent study, fish oil supplements are more likely to be rancid (oxidized) than prescription fish oil. However, a closer look at the study by ConsumerLab staff suggests that this finding may be misleading, as explained in the "Quality Concerns" section of the Fish Oil Supplements Review >>



 

Follow us on...
   


ConsumerLab.com Encyclopedia

In addition to our product reviews our encyclopedia covers the following:



Follow ConsumerLab.com on Twitter    |     Become a Fan on Facebook
Join | Sign In
Home | Product Tests | Brands Tested | Health Conditions | Encyclopedia | CL Answers | Clinical Updates | Where to Buy Products
News | Recalls & Warnings | RDAs | Raw Materials Tests | Testing Programs | The CL Seal | CL Survey | About Us
In The News | Group Subscription | Gift Memberships | Join Free Newsletter | Privacy Policy | Site Map | Testimonials | Contact Us/Help

©2017 ConsumerLab.com, LLC. All rights reserved. A single copy of a report may be printed for personal use by the subscriber.
It is otherwise unlawful to print, download, store or distribute content from this site without permission.
ConsumerLab.com name and flask logo are both registered trademarks of ConsumerLab.com, LLC.
This site is intended for informational purposes only and not to provide medical advice.