[lez]

For the overcautious theoretic thinkers here, I recommend reading about Coimbra protocol, where 50,000 IU daily is not rare. It can go up to 300,000 IU per day.

At levels above 10,000 IU per day you should take precautions to prevent calcification of the soft tissues: Take Vitamin K (100-200ug), Boron (10-20mg) to prevent calcification. Vitamin A should be dosaged at a ration 1:1 - 1:4 compared to Vit D (same amount or 4 times more of vitamin A) because A and D are anthagonists.

Below 10,000 IU there's only benefits of better health and no risk or precautions needed.

[ufo]

I'm not sure if a quack doctor's miracle cure "protocol" is a good point of comparison...

https://veja.abril.com.br/saude/medicos-questionam-tratament...