I think that's a pretty fair assessment, there's generally minimal risk at normal dosages you find in the store (1000IU or whatever). If you're really concerned

I think that's a pretty fair assessment, there's generally minimal risk at normal dosages you find in the store (1000IU or whatever). If you're really concerned, a quick visit to the doctor to get baseline labs is a good way to make sure you're not gonna verge on toxicity.