Andrew Huberman· PhD
Usually with multivitamins, it would have to be an absolute horse pill to get enough vitamin D, or vitamin D3 in that. So, I do take extra vitamin D3.
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The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
Usually with multivitamins, it would have to be an absolute horse pill to get enough vitamin D, or vitamin D3 in that. So, I do take extra vitamin D3.
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Consequently, supplementation is often necessary to achieve optimal vitamin D3 status.