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Scientific Experts Call for Increased Vitamin D

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By: Sean Moloughney

Editor, Nutraceuticals World

Two scientists from the Council for Responsible Nutrition (CRN), Washington, D.C., and two pre-eminent vitamin D researchers, are urging the Food and Nutrition Board (FNB) to raise the vitamin D Tolerable Upper Intake Level (UL) five-fold, based on a safety evaluation of the latest scientific research that shows this vitamin to be safe at intake levels much higher than its current UL. John Hathcock, PhD, and Andrew Shao, PhD, both of CRN, and Reinhold Vieth, PhD, of Mount Sinai Hospital, Toronto, Canada, and Robert Heaney, MD, of Creighton University, co-authored a vitamin D risk assessment using the FNB method, which was published in the January issue of American Journal of Clinical Nutrition. The paper concluded that the safety profile of vitamin D should safely permit raising the UL for vitamin D to 250 µg (10,000 IU) per day from the current UL of 50 µg (2,000 IU) per day.

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