Vitamin D Researchers: ‘Calculation Error Greatly Underestimated RDA, Broad Implications For Public Health’

New vitamin D findings out of San Diego challenge the Recommended Daily Allowance (RDA) of vitamin D that is suggested by Institute of Medicine (IOM). The researchers who have been examining the data suggest that a calculation error by earlier researchers underestimated the Vitamin D intake needs in such a way that it may have had drastic implications on public health. The scientists at UC San Diego and Creighton University published a letter in the medical journal Nutrients, confirming the earlier calculation error for the RDA of vitamin D. The letter validated work published by the University of Alberta School of Public Health’s adjust professor, Dr. Cedric Garland, which was published last fall.

The study published last fall said that the miscalculations and low RDA of vitamin D intake that came from those erroneous calculations has had a serious impact on human health.

“The public health and clinical implications of the miscalculated RDA for vitamin D are serious. With the current recommendation of 600 IU, bone health objectives and disease and injury prevention targets will not be met.”

“Both these studies suggest that the IOM underestimated the requirement substantially,” Garland explained after the confirmation of the miscalculations came to light, according to a press release on Newswise. “The error has broad implications for public health regarding disease prevention and achieving the stated goal of ensuring that the whole population has enough vitamin D to maintain bone health.”

A growing body of evidence potentially implicates vitamin D deficiency in a number of diseases affecting Americans including, but not limited to, type 2 diabetes, heart disease, difficult or painful childbirth, dementia, Alzheimer’s disease, depression, and cancer.

The researchers publicly called to all authorities in public health to drastically increase the RDA for vitamin D, because their calculations suggest that Americans should be getting ten times the amount of vitamin D that is currently recommended. Creighton University’s Dr. Robert Heaney explained that the IOM’s suggested RDA of 600 IU/day for adults under age 70, and 800 IU/day for the elderly, is nowhere near enough for good health.

“We call for the NAS-IOM and all public health authorities concerned with transmitting accurate nutritional information to the public to designate, as the RDA, a value of approximately 7,000 IU/day from all sources.”

Garland said that the new adjusted recommendation suggested by the vitamin D research team is well below what is considered the safe upper level of vitamin D for both teens and adults.

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