You've seen the influencers swear that one night of drinking shuts off fat burning for a day — or a week. Here's the truth: that claim is almost right, which is exactly why it spreads. Alcohol does pause fat burning — but only for a few hours, and it's the smallest part of the story. The real reason drinking stalls fat loss? The calories in the glass and the late-night snacking. Here's what actually happens when you drink, and how to enjoy a few without losing your progress.