Popular Vitamin Supplement Causes Cancer Risk and Brain Metastasis

Popular Vitamin Supplement Causes Cancer Risk and Brain Metastasis

New investigation finds that the well known nutritional dietary supplement nicotinamide riboside could raise the hazard…

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How much Vitamin D do we need and how much is too much? Do we really need supplements?

How much Vitamin D do we need and how much is too much? Do we really need supplements?

Vitamin D is both a nutrient that we consume and a fat-soluble hormone that our bodies…

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Your questions on vitamin D (and other supplements), answered

Your questions on vitamin D (and other supplements), answered

On Nutrition I received some excellent questions following my recent column on recent vitamin D research,…

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How much vitamin D do I need, and should I take a supplement?

How much vitamin D do I need, and should I take a supplement?

JoAnn E. Manson is the preventive medicine chief at Brigham and Women’s Hospital and a professor…

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Vitamin D Supplements Fail to Prevent Bone Fractures in Large Clinical Trial

Vitamin D Supplements Fail to Prevent Bone Fractures in Large Clinical Trial

Image: Shutterstock (Shutterstock) An extra dose of vitamin D probably won’t make the average person’s bones…

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How does vitamin D supplementation impact COVID-19 vaccine efficacy?

How does vitamin D supplementation impact COVID-19 vaccine efficacy?

In a recent study posted to the medRxiv* preprint server, researchers assessed the impact of vitamin…

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