Is it ever a good idea to throw a 24 or 40 (roughly a day) hour fast in the mix, now and again?

My feeding windows are usually about 2-3 hours (about 1700-1800 calories), and about once a week, I've been throwing in a fast that lasts from the end of one day's feeding window, to the beginning of the window for the day after tomorrow. Roughly equals about 40 hours.Bad idea? Good idea? via /r/intermittentfasting https://ift.tt/2DHHB8k https://ift.tt/eA8V8J