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Product Reviews (2)

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Clinical Updates (5)

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Vitamin D and Prediabetes

Can vitamin D supplementation improve insulin resistance in people with prediabetes? See what a recent study found in the Prediabetes section of our Vitamin D Supplements Review. Also, see our Top Picks for vitamin D.

Magnesium Helps in Prediabetes

A recent study in people with prediabetes who were deficient in magnesium showed that a daily dose of magnesium significantly improved their glucose status. Details, along with our recent tests of magnesium supplements, are found in the Magnesium Supplements Review »

Curcumin May Help Prevent Diabetes

Past research has suggested a potential role for curcumin (from turmeric) in blood sugar control. A recently published placebo-controlled study of curcumin given daily to people with prediabetes (those with blood sugar levels somewhat higher than normal) produced dramatic results in reducing the percentage of such individuals progressing to diabetes. Get the details in the latest update to's Turmeric and Curcumin Supplements Review -- which includes quality ratings of products and other potential uses of curcumin. More >>

Cinnamon for Prediabetes?

Does taking a daily cinnamon supplement help control blood sugar in people with pre-diabetes? See the results of a recent study in the What It Does section of the Cinnamon Supplements & Spices Review. Also see our Top Picks among cinnamon supplements and among cinnamon spices.

Black Seed Oil for Blood Sugar Control?

Find out if black seed oil improved blood sugar control in people with prediabetes in our updated answer to the question: What are the health benefits of black cumin seed (black seed) oil?