Corpus ID: 9437299

Evidence that vitamin D 3 increases serum 25-hydroxyvitamin D more efficiently than does vitamin D 2 1 – 3

@inproceedings{TrangEvidenceTV,
  title={Evidence that vitamin D 3 increases serum 25-hydroxyvitamin D more efficiently than does vitamin D 2 1 – 3},
  author={H. Trang and D. Cole and L. Rubin and A. Pierratos and S. Siu and R. Vieth}
}
In all species tested, except humans, biological differences between vitamins D 2 and D 3 are accepted as fact. To test the presumption of equivalence in humans, we compared the ability of equal molar quantities of vitamin D 2 or D 3 to increase serum 25-hydroxyvitamin D [25(OH)D], the measure of vitamin D nutrition. Subjects took 260 nmol (Ϸ4000 IU) vitamin D 2 (n = 17) or vitamin D 3 (n = 55) daily for 14 d. 25(OH)D was assayed with a method that detects both the vitamin D 2 and D 3 forms… Expand
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