> Is this safe,
Maybe?
> and if so would a doctor ever recommend to do this every day?
Most definitely not, but then again, Doctors err on the side of caution for obvious reasons
Maybe?
> and if so would a doctor ever recommend to do this every day?
Most definitely not, but then again, Doctors err on the side of caution for obvious reasons
Let me rephrase this slightly: Doctors err on the side of caution in terms of the liability of performing a medical intervention (Such as advising to take a supplement). 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.
It's much harder to sue over a lack of an intervention than it is to sue over an intervention that produced a negative outcome. Both happen for sure, but there's a systemic bias in the process. In general, this is probably a good thing, but it's nuanced.
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...
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.
(Bioavailability of oral D3 supplements is pretty low, generally. I'm sure most of what I'm taking is being wasted, but it's like $10/mo for the supplement, which is below the line for me to optimize.)
I hope you're adding K2 as well...