PREFER VITAMIN D3 OVER VITAMIN D2 – (11-21-04)



Vitamin D2 Is Much Less Effective than Vitamin D3 in Humans

Given the literal explosion of Vit D research over the past few years, this information is of great importance. Many of the lower quality multivitamins contain the D2 form of Vit D which (ergocalciferol=D2, cholecalciferol=D3) in this study was about 1/3 as potent and its effect was much shorter. Yet another reason why spending a little extra money on a good quality multi is not just “making expensive urine.”

Vitamin D2 Is Much Less Effective than Vitamin D3 in Humans — Armas et al. 89 (11): 5387 — Journal of Clinical Endocrinology –

Read entire article here

James Bogash

For more than a decade, Dr. Bogash has stayed current with the medical literature as it relates to physiology, disease prevention and disease management. He uses his knowledge to educate patients, the community and cyberspace on the best way to avoid and / or manage chronic diseases using lifestyle and targeted supplementation.







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Category: Vitamin D
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