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Dr. Vasquez—is it true that vitamin D2 is more immunologically active than vitamin D3? I heard that from an osteopath.

Ref: Epigenetics International; Astill-Smith, C. Do All Diseases Start in the Womb? YouTube, 2022. https://youtu.be/IZQNFMXb360?t=1610 (accessed 2024-06-20).

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Hola buenas -- I would ask what is "immunologically active" and if that is good or bad?

My replies from the experts: Vitamin D2 Is Much Less Effective than Vitamin D3 in Humans

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The Journal of Clinical Endocrinology & Metabolism, Volume 89, Issue 11, 1 November 2004, Pages 5387–5391, https://doi.org/10.1210/jc.2004-0360

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also: Vitamin D3 Is More Potent Than Vitamin D2 in Humans

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The Journal of Clinical Endocrinology & Metabolism, Volume 96, Issue 3, 1 March 2011, Pages E447–E452, https://doi.org/10.1210/jc.2010-2230

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Good to know. Thanks!

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