There are several intermittent fasting methods, and some are more strict than others. This could leave "someone famished, leading to overeating later on," registered dietitian Rachel Stahl, MS, RD, CDN, CDE, explained.
The 20:4 method, where you only have a four-hour eating window every day, may leave you feeling ravenous once your eating window opens, so you end up eating more calories than if you weren't doing IF at all.
Your IF lifestyle should feel easy and effortless, and definitely shouldn't leave you feeling so starving that you binge. Try different methods to see if they work better for you, or consider that IF might not be for you.