April 2015

Researchers Question Vitamin D Intake Recommendations

Researchers are now challenging current National Academy of Sciences (NAS) Institute of Medicine (IOM) Recommended Dietary Allowances (RDA) for vitamin D, suggesting an updated RDA of 7000 IU.

According to the investigators, their research shows that current recommendations of 600 IU for people 70 years-old or younger, only provides a fraction of what is needed to reduce vitamin D deficiency-related diseases. Furthermore, another recent study also suggests that the RDA needs to be increased. Read more about vitamin D here


  1. Heaney R, Garland C, Baggerly C, et al. Letter to Veugelers, P.J. and Ekwaru, J.P., A statistical error in the estimation of the recommended dietary allowance for vitamin D. Nutrients 2014, 6, 4472-4475; doi:10.3390/nu6104472. Nutrients. 2015 Mar 10;7(3):1688-90.

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