Ask Ray | Supplement study quoted in The Wall Street Journal is misleading

... be that one needs to formulate supplement combinations with sufficient potency of important ingredients (such as Vitamin D and mixed tocopherols) and avoid ones that have potential harm (such as iron, Vitamin A, excessive Alpha Tocopherol), not that ...

http://www.kurzweilai.net/ask-ray-supplement-study-in-the-wall-street-journal-is-misleading