@Dan_Hulson @CatLord I try not to talk about this in terms of being careful, since people take it straight to their ego and over do it anyway. Just try to point out the facts.

I just skimmed the first article that popped up about vitD. Average human needs 2000 IU daily. Make it 4000 IU if you're a FUCKING WHALE OF A MAN. Anything above and you're risking mild toxicity, 10K is probably mid-high toxicity territory. And ideally you should balance your regular food intake with the supplement.