In 2008, researchers showed that people who ate between 11 p.m. and 5 a.m. consumed more total calories per day and gained more weight over time. If your freewheeling diet has you eating at oddball hours, chances are you’re eating more overall.
A new study found that when people who tended to eat a third of their calories between 6 p.m. and midnight switched to a schedule where they stopped eating between 7 p.m. and 9 a.m., they lost weight and slept better.
The time of day doesn’t matter as much as how much you’re eating within 24 hours. To reduce that amount, stick to a food window of 10 or 11 hours, says Satchin Panda, Ph.D. It may keep your circadian rhythm and weight steadier.