2 ms·

IANAD. My understanding is that you are avoiding calories. More specifically, you are avoiding the bodily processes (especially insulin response, etc.) that a

by rsync 10y ago

IANAD. My understanding is that you are avoiding calories. More specifically, you are avoiding the bodily processes (especially insulin response, etc.) that accompany digestion. So water, coffee and tea fit into that. Coffee or tea with milk, however, does not. I am not sure about the vitamin supplements. Even if they are zero calorie, they have to be digested, etc., in a way that goes beyond coffee and tea ... I would just wait until lunch/dinner, but I only IF for 16-20 hours at a time.

gtirloni 10y ago
I used to have coffee and tea while water fasting but not anymore. While coffee helps with the initial headaches and may provide more energy in the following days, the fact that caffeine is a psychoactive drug started to worry me when doing the fasts. Surely, I don't think it causes any damage and by all means, have some if it helps you. But I've noticed it affects my primary goal with fasting: putting my system in a more natural state than before. It took me a while to remove it from my fasting practice.