I have been searching for an answer to this question and I have not found an answer. I am currently 16:8 and have an upcoming colonoscopy. Can anyone tell me whether the polyethylene glycol prep breaks a fast for IF purposes?
Why worry? It’s literally LEAVING you empty, it isn’t even food, and you will be doing nothing but that for hours! Best wishes for the results of the ensuing test, which is a walk in the park (in case it’s your first time)
Some people mix it with Gatorade which would break it obviously. Are you planning to mix it with water? I mix it with George’s Aloe Vera juice. I don’t know if it breaks the fast but it is a much better approach for me.
I honestly wouldn’t worry about your eating” window the whole point of IF is to control your calorie intake and the liquid diet you are going to be on for the prep is pretty low calorie plus you will lose like 5 lbs in poop anyway.