Sunday, May 17, 2015

The Real RDA for Vitamin D Is 10 Times Higher Than Currently Recommended

May 10, 2015
 By Dr. Mercola
Without a doubt, one of the most important nutrients for optimal health is vitamin D. But questions still remain about just how much is needed. Dr. Robert Heaney M.D., is one of the premier vitamin D researchers in the world.

He's also the research director of GrassrootsHealth, headed by Carole Baggerly, which is compiling data from a number of population-based studies like the D*Action project, which many of my readers are participants in.

What is clear is that the recommended dietary allowance (RDA) should really be 10 to 15 times what the Institute of Medicine (IOM) recommends.

Trained as a clinical endocrinologist, Dr. Heaney has spent a large part of the last 50 years doing clinical research; most of it in the field of vitamin D, working on quantifying the vitamin D economy.

This includes defining how much vitamin D>>>

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