“Cheat days” can serve legitimate purposes—psychological relief, social flexibility, sustainability—or become license for extreme overeating that erases a week’s deficit in 24 hours. Research on restrained eating shows the approach matters more than the concept itself. Ask honestly: Does your cheat day leave you satisfied and ready to resume normal eating, or does it become a binge? The answer tells you whether it’s strategic or self-sabotage.
This companion covers the case for and against, and better alternatives. (4 min read)