???? I have done it twice and many folks I know and relatives have done it at least once. D3 is just sunshine in a tiny gelcap. Long term taking of too much D3, similar to too much daily sun in the tropics is loss of a desire to eat. D3 doesn’t give you sunburn, though. It is not 100% as good as sunshine but outside of the tropics, effective sunshine is a seasonal thing.
So a man that weighs 250 lbs has to take 900×250 IU ( = 225,000 IU)???
Something’s wrong with this picture.
Loss of desire to eat is a plus, for, er, some of us.