Originally Posted by Ambulo

I have been doing old-fashioned by-the-clock fasting for years and the advice on my fasting group is that anything prescribed must be taken as instructed, whether in the fast or with a meal; whereas anything elective should be taken with a meal unless it specifically says on the bottle that it must be taken on an empty stomach.

Though it would be interesting to know the result of anyone does test say, a vitamin D capsule.