We did not observe any increase in the risk for hypercalcemia with increasing vitamin D supplementation.

We recommend vitamin D supplementation be 2 to 3 times higher for obese subjects and 1.5 times higher for overweight subjects relative to normal weight subjects.

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Obese need 2X to 3X more vitamin D – Nov 2014

Obese need 2.5 times as much vitamin D as normals

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  • Normal weight     Obese     (50 ng = 125 nanomole)

Response vs obesity @ /is.gd/2Xobese

The Importance of Body Weight for the Dose Response Relationship of Oral Vitamin D Supplementation and Serum 25-Hydroxyvitamin D in Healthy Volunteers

PLOS ONE, Published: November 05, 2014DOI: 10.1371/journal.pone.0111265
John Paul Ekwaru, Jennifer D. Zwicker, Michael F. Holick, Edward Giovannucci, Paul J. Veugelers

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