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> There are many cases where the advice from an MD minimizes their liability and risk but doesn't optimize health for the most number of people.

That may be true in general, but is there any evidence that regularly taking 20,000 IU/day if vitamin D is optimal for health? I see a lot of articles making an affirmative recommendation not to take more than 4,000 IU/day.

Ex: https://www.health.harvard.edu/staying-healthy/too-much-vita...

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Oh, I only mean for it to apply in general.

With regard to vitamin D, I think there are more people that would benefit from Vitamin D than there are MD's willing to recommend they take it and get the requisite blood work done to confirm appropriate supplementation rate.

However, in general, 20,000IU/day every day is quite high and should be done cautiously if at all.

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