Featured Formulas by Ray Sahelian, M.D.

Supplement Research Update by Ray Sahelian, M.D.

Vitamin D caution

Q.  Just wanted to briefly share my recent experience in order to encourage people to be more cautious. I have a history of irritable bowel syndrome and chronic fatigue syndrome. I started supplementing Vitamin D3 orally at 1000 IU per day and gradually increased to 5000 IU per day over...

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Magnesium controversy

Q.  As a reader of your website and enjoying every page of it, I must say though, that you could recommend a better form of magnesium instead of oxide. Magnesium oxide has a lower rate of absorption and in higher doses will mess up the colon. I understand that it's...

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