Myth 10: Don’t Eat After 6/7/8 PM
10 Stubborn Food Myths That Just Won't Die, Debunked by Science
Both Andy Belatti and Alannah DiBona called this myth out in different ways. Andy went right for its throat, noting that it is “A silly weight-loss gimmick. What matters is what you’re eating throughout the day. Food eaten after 7 does not magically turn to fat. This is also a ridiculous ‘tip’ for someone who goes to bed at midnight or 1 AM. This tip often ‘works’ because people end up reducing their total caloric intake.”
He’s right: this myth comes from a half-scientific understanding of how digestion works. The idea is that if you eat too late and go to bed on a full stomach, your body’s metabolism will slow down and instead of burning the food you just ate, you’ll turn it all into fat and gain weight. That statement is only partially true, and isn’t universal for all people. While it’s true your metabolism slows down when you go to sleep, it doesn’t stop, and you still churn through the food in your stomach, albeit slower. If your diet, exercise, and activity habits mean that a meal is more likely to metabolize into fat because you sit at a desk all day, eating it at 5pm versus 7pm isn’t going to change that.
In reality, what really happens for the people who swear by this trick is that they don’t wind up eating breakfast the following morning on top of a stomach full of food, and that they’ve blocked off areas of their night when they’re not consuming food-as opposed to someone who would be tempted to have a late-night snack. In essence, they’re just eating less overall. This myth is so popular that the ADA has a page dedicated to debunking it.
Belatti also makes the point that if you’re the type of person who’s up very late, setting an arbitrary time to stop eating at night isn’t going to help you lose weight, it’s just going to make you skip a meal. DiBona had something specific to say about meal skipping, and how dangerous it can be: “Just several years ago, I remember reading in Cosmopolitan magazine that skipping breakfast or lunch following a “night of indulgence” could aid in one’s efforts to lose weight. The editors couldn’t have been more wrong. If a meal is skipped, the body begins a process of metabolic slowing commonly referred to as ‘starvation mode.’” She continued, “Additionally, surges of hormones then encourage overeating at the next meal, resulting in a higher caloric intake at the day’s end. Keeping one’s blood sugar balanced with small meals and snacks throughout the day is a much more successful approach for weight maintenance and mental alertness.”
