Clinical Updates
Filter:   By Product Type  |  By Date
Filter:  Year:
Month:  January  February  March  April  May  June  July  August  September  October  November


Melatonin for Itchy Skin -- (11/29/2015) Atopic dermatitis is an itchy inflammation of the skin, affecting up to 10% of adults and 30% of children. A recent study in children and adolescents with atopic dermatitis found that taking melatonin modestly reduced symptoms and, not surprisingly, reduced the time needed to fall asleep. For details about this and other uses of melatonin, as well our reviews of available melatonin supplements (including several similar to the one studied), see the Melatonin Supplements Review >>
Cocoa for Wrinkles? -- (11/24/2015) A study in older women found that drinking a high-flavanol cocoa drink each day increased skin elasticity. And while wrinkles deepened among those drinking a placebo, they stayed stable in the cocoa-drinking group. For details about the amount of cocoa consumed (and its flavanol content), as well as our tests of flavanols (and contaminants) in popular cocoa powders and chocolates, see the Cocoa Powders, Dark Chocolate, Extracts, Nibs, & Supplements Review >>
Herbal Arousal -- (11/24/2015) We have previously reported that ashwagandha extract may improve fertility in men. A new study suggests that it can improve sexual function in women. Details about the product and dosage, and our tests of products on the market, are found in the Ashwagandha Review >>
Ideal Vitamin D Levels to Reduce Cardiovascular Risk? -- (11/21/2015) A study of a large group of Americans found that the risk of developing cardiovascular disease was 35% higher in people with low levels of vitamin D. Get the details, plus more about maintaining healthful blood levels of vitamin D, and our tests of products, in the Vitamin D Supplements Review >>

Be aware that there is also a risk of getting too much vitamin D >>
Genetically-engineered Salmon: How it Compares -- (11/21/2015) This week the FDA approved a genetically-engineered, farmed salmon as safe for consumption — but how do amounts of omega-3's and hormones compare with non-genetically engineered salmon? Get the details in the update to the Fish Oil and Omega-3 Fatty Acid Supplements Review (Including Krill, Algae, Calamari, Green-lipped Mussel Oil) >>
Fish Oil Freshness -- (11/11/2015) 50% of omega-3 fatty acid supplements recently purchased by researchers in Canada failed tests for freshness, exceeding limits for oxidation. Although the study raises some important issues, it also had significant shortcomings. Get the details in the Fish Oil and Omega-3 Fatty Acid Supplements Review (Including Krill, Algae, Calamari, Green-lipped Mussel Oil) >>
Cocoa Flavanol Safety -- (11/11/2015) A new study found that, even at high doses, cocoa flavanols did not cause adverse cardiovascular effects in healthy men and women. However, be aware that drug interactions and certain side effects can occur. Details are provided in the "Concerns and Cautions" section of the Cocoa Powders, Dark Chocolate, Extracts, Nibs & Supplements Review >>
Too Much Vitamin D Can Increase Colds -- (11/8/2015) A recent study in people with asthma found that giving high-dose vitamin D increased the risk of developing a cold among those who achieved higher levels of vitamin D or were African-American. Nearly half of those in the study were not vitamin D deficient to start. In contrast, studies have found that giving moderate doses of vitamin D to people who are vitamin D deficient decreases the risk of colds. The point, in our opinion: Maintain an adequate, but not excessive, level of vitamin D. For details (including dosage, levels, and our tests of products) see the Vitamin D Supplements Review >>
When to Use Lutein -- (11/8/2015) Lutein and zeaxanthin can help people who have macular degeneration of the eye. However, a recent study found that taking lutein and zeaxanthin may only help those with existing low levels of these compounds. Get more details, including dosage, in the Lutein and Zeaxanthin Review >>
Triglyceride-Lowering with a Probiotic -- (11/7/2015) Studies with probiotics have demonstrated modest lowering of LDL ("bad") cholesterol, but the evidence has been mixed regarding triglycerides. A recent study in which a probiotic was added to a kefir drink showed a 17% reduction in triglycerides along with a modest reduction in LDL — effects not seen with the kefir alone. Details are found in the Probiotics and Kefirs Review >>



Product Reviews

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

Herbs & Supplements


Drug Interactions

Alternative Therapies


Follow us on...
facebook twitter
Join |  Sign In
Join Us on Facebook! Join Us on Instagram! Join Us on Twitter! Join Us on YouTube! Join Us on YouTube!
Product Tests
Brands Tested
Health Conditions
CL Answers
Clinical Updates
Recalls & Warnings
Where to Buy Products
Raw Materials Tests
Testing Program
How Products Were Tested
Join CL Today
Join Free Newsletter
Group Subscriptions
Gift Membership
About Us
The CL Seal
CL Survey
Privacy Policy
Contact Us/Help

©2019, 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. name and flask logo are both registered trademarks of, LLC. This site is intended for informational purposes only and not to provide medical advice.