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Product Reviews (1)

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Recalls & Warnings (23)

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Clinical Updates (8)

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Vitamin D & Depression

Women with depression and type 2 diabetes were given high-dose vitamin D for several weeks in a small, pilot study. By the end of the study, vitamin D levels in the blood had risen considerably and mood was significantly improved, as was blood pressure. Although just a pilot study, this is not the first study to suggest that vitamin D may help with depression. For more details, as well as test results and comparisons for 55 vitamin D supplements, see the updated Vitamin D Supplements Review >>

Fish Oil for Strength

A recent study of women in their 60's suggests that taking fish oil when strength-training leads to greater improvements in strength than training alone. Women who took fish oil were not only stronger but had a greater functional capacity, such as being able to rise faster from a chair. For the type and dose of fish oil taken, and more details, see the update to the Fish Oil Supplements Review, which includes the latest product tests.

How to Boost Your Vitamin D!

A study of people whose vitamin D levels did not rise enough despite taking a supplement found that just changing when the supplement was taken boosted vitamin D levels by 50%. To find out how and to get more details, see the recent update to the Vitamin D ReviewMore >>

Olive Oil Helps in Pre-Diabetes

Adding extra virgin olive oil to a meal decreased the rise in blood sugar and increased insulin levels after the meal, according to a new study in people with pre-diabetes. Similar benefits with olive oil have been shown in people with type 1 and type 2 diabetes. For details, see the "Insulin Control and Blood Sugar" section of the Extra Virgin Olive Oils Review, which includes our tests and comparisons of popular olive oils on the market.

Apple Cider Vinegar for Type 2 Diabetes?

Studies have shown that taking apple cider vinegar with or before a meal can reduce the subsequent rise in blood sugar. But does apple cider vinegar improve insulin sensitivity in people with type 2 diabetes? Find out what a recent study showed in the Blood Sugar Control section of the Apple Cider Vinegar Review. Also see our Top Picks for apple cider vinegar.

Green Tea and Blood Sugar

Can drinking green tea reduce the rise in blood sugar after a meal, and if so, is the effect greater in the morning or evening? See what a new study found in the What It Does section of the Green Tea Review. Also see our tests and Top Picks among green tea supplements, and brewable and bottled teas.

Vitamin D for Dizziness When Rising?

Can vitamin D reduce symptoms of orthostatic intolerance (low blood pressure when standing up)? Find out what a new study in adolescents showed in the What It Does section of Vitamin D Supplements Review. Also see our Top Picks for vitamin D.

Most Herbal Products Don't Contain Listed Herb

DNA analysis of 44 herbal products from Canada and the U.S. found that only 48% contained the herb listed on the label and one-third of these products contained contaminants or fillers not listed on the label (Newmaster, BMC Med 2013). Nine percent of products contained only rice or wheat and none of the listed herb. Many cases of herb substitution were reported, including senna (a laxative) in a product labeled as St. John's wort. Several products were contaminated with feverfew, which should not be consumed by pregnant women and may react with a variety of medications. The researchers, from the University of Guelph in Ontario, did not disclose the identities of the tested products, which were single-ingredient herbs sold as capsules, powders, or tablets. Significant challenges continue to exist for routine use of DNA analysis of herbs, but may use this technique where appropriate in the future, alongside other analytical techniques in its Product Reviews.   

News Releases (20)

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