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Clinical Updates
Recently Added
Does Creatine Cause Loss of Hair?
April 28, 2025
There has been concern that creatine might cause loss of hair through a hormonal effect. A new study looked at this issue more directly. Find out what the study showed in the Concerns and Cautions section of our Muscle Enhancers Review, which includes our Top Pick for creatine.
Also see our article about supplements for hair.
Caution With Red Yeast Rice
April 28, 2025
Although rare, red yeast rice, like statin medications, can cause a rapid breakdown of muscle that can lead to kidney failure and other complications. Get the details of a recently reported case in the Concerns and Cautions section of our Red Yeast Rice Review, which includes our Top Pick among red yeast rice supplements.
Quality Concern: Andrographis Sold on Amazon
April 28, 2025
A recent analysis of andrographis supplements (often promoted for immune support) sold on Amazon showed about one in five to be of poor quality. Learn more and what to look for in our article about andrographis.
Most NAD+ Fail Tests
April 28, 2025
Among popular NAD+ supplements sold on Amazon, most were found to contain virtually no NAD+, according to tests by a competing supplement company. For results by product, see the Quality Concerns section of our NAD Boosters Review. Also see our Top Picks among NAD Boosters.
Extra Virgin Olive Oils Rated
April 28, 2025
Three popular extra virgin olive oils tested in our Extra Virgin Olive Oil Review received awards in a recent international olive oil competition. Get the details and see our Top Picks among extra virgin olive oils.
Take These When Using Cipro?
April 24, 2025
Antibiotics known as fluoroquinolones (such as "Cipro") may cause tendonitis (particularly of the Achilles tendon) weeks after use. A preliminary study suggests that taking vitamin E and selenium supplements may slightly reduce resulting symptoms. For details, see the What It Does section of our Vitamin E Review. Also see our Top Picks for vitamin E and selenium.
Microplastics Linked with High BP, Stroke
April 24, 2025
Exposure to higher amounts of microplastic was associated with increased risk of several chronic diseases, according to a recent study. Get the details in article about Microplastics in water, salt, foods, and beverages. Also see our Water Filter Pitchers Review for our Top Pick for removing microplastics.
Plasticizers in Starbucks Coffee?
April 24, 2025
Do popular coffees, such as those from Starbucks, contain concerning levels of toxic plasticizer compounds (phthalates and BPA)? Learn what recent tests showed in our article about coffee.
Heavy Metals in One A Day?
April 24, 2025
A CL member contacted us this week, concerned by a recent report of heavy metals in prenatal supplements, including a prenatal from One A Day. See our take on these findings in our Multivitamins Review.
Methylene Blue for Anti-Aging or Memory?
April 21, 2025
What is methylene blue, does it slow aging or improve memory, and is it safe? Find out in our new article about methylene blue.
