Here Dr Holick talks about Vitamin D3, how much we need and why it is so important for the bone health and the immune system.

🌐Links in this video

Dr Holick's website https://drmichaelholick.org/

Vitamin D information https://drmichaelholick.org/vitamin-d/

Dr Holick's page at Boston University https://www.bumc.bu.edu/camed/profile/michael-holick/

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