Does black coffee mess up IF? I drink black coffee everyday and I want to do IF. I have heard that coffee messes with IF. Does anyone have any resources that discusses this?
Caffeine does something to the body when fasting but the real question is if it’s enough to negate the positive effects of IF. I would say the answer is no.
Here is some reading: this studies shows it impacts fasting glucose levels etc but I doubt this will put a dent in your efforts to ooose weight.