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CL Answers (13)

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Recalls & Warnings (120)

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Clinical Updates (9)

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1/11/2011

Insulin Sensitivity and Magnesium

A recent study found that magnesium supplementation improved fasting glucose levels in insulin insensitive, obese people. While a similar effect has been seen in magnesium deficient people, the new study found benefit in people who had normal magnesium levels. The research suggests that magnesium may help prevent the onset of type 2 diabetes in some people. See the Magnesium Supplements Review for the type and dose of magnesium used and more >>
11/14/2014

Ginseng for Lower Blood Sugar

A new study found that a certain kind of ginseng helps lower blood sugar levels in people with impaired fasting glucose. For more about this study and related studies on blood sugar and diabetes with other types of ginseng (which have had mixed results), see the Ginseng Supplements Review >> 
1/19/2019

Dog Overdoses on Supplement

Be sure to keep your supplements away from pets -- especially if they taste sweet. A dog overdosed on its owner's fast-dissolving tablets, putting it in a coma, according to a recent report. For details, see the Concerns and Cautions section of the L-tryptophan and 5-HTP Supplements Review.
7/12/2014

Vitamin D & Calcium for Diabetes Due to Pregnancy

A new study found supplementation with a combination of vitamin D and calcium improved fasting blood sugar levels, serum insulin levels, and insulin sensitivity in women with gestational (pregnancy-related) diabetes. For more details, including dosage, as well as our tests and comparisons of vitamin D and calcium supplements, see the update to the Vitamin D Supplements Review (Including Calcium, Vitamin K, Magnesium) >>   
10/22/2016

Cocoa Lowers Blood Sugar

In addition to potential cardiovascular, memory, and other benefits, a new analysis shows that cocoa flavanols may reduce fasting glucose and improve insulin resistance. Get the details in the "What It Does" section of the Cocoa and Dark Chocolate Review >>
3/06/2018

Do Probiotics Affect Weight?

Studies have shown some probiotics to help somewhat with weight loss and/or slimming, while others have shown no effect. However, a recent study with a popular probiotic found that it increased weight. Get the details in the Weight and fat loss section of the Probiotic Supplements Review.
2/13/2017

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) >>
9/02/2015

CLA Linked to Acute Hepatitis

CLA supplements are popular for slimming, but a recent report of acute hepatitis (liver inflammation) associated with use of CLA is concerning. Get the details, plus more about evidence, safety, and our tests of popular products in the CLA Supplements Review >>
5/19/2013

Optimum Level of Vitamin D

New research shows that blood levels which are too low or too high for vitamin D are associated with increased risk of heart attack and earlier death. Find the "sweet spot" for vitamin D levels as well as test results for 55 vitamin D supplements in the updated Vitamin D Supplements Review >>

News Releases (15)

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