For Students
Cheat days: do they actually help or hurt?
One high-calorie day a week isn't going to undo your progress — but it's also not the metabolism-boosting hack it's sometimes marketed as.
What a cheat day actually does
A single high-calorie day causes a small, temporary bump in metabolic rate and can refill glycogen stores (with some accompanying water weight), but it does not meaningfully "reset" a slowed metabolism the way it's sometimes marketed — metabolic adaptation to dieting is a gradual process that one day doesn't reverse.[1] The main practical effect of a cheat day is psychological: for some people, having a planned release valve improves adherence to the rest of the week.
Cheat day vs. flexible dieting
The risk with a dedicated "cheat day" is that it can turn into a large enough calorie surplus to offset several days of a deficit, especially if it isn't planned with any structure. A more moderate alternative many people find easier to sustain is flexible dieting (IIFYM) — working treats into your regular daily targets in moderate amounts, rather than saving everything for one unrestricted day.[1]
Keep reading: IIFYM explained · Macros for fat loss · Cutting, bulking, and maintenance