There's no evidence that a small, healthy snack before bed leads to weight gain. Just keep in mind your total daily calorie intake. Therefore, if you feel that eating something before bed helps you fall asleep or stay asleep, it's OK to do so.
Do you gain weight if you eat at night?
The Bottom Line. Physiologically, calories don't count for more at night. You won't gain weight by merely eating later if you eat within your daily calorie needs. Still, studies show that nighttime eaters typically make poorer food choices and eat more calories, which can lead to weight gain.
Is eating before bed good for weight loss?
Written by Eleanor Bird, M.S. on April 23, 2020 — Fact checked by Jessica Beake, Ph. D. Eating breakfast and avoiding late night snacking is best for burning fat and losing weight, new research shows.