Why do I feel tired after eating lunch?

Concerns & risks

You were trying to stay productive after lunch, but you're fighting to keep your eyes open.

Afternoon slumps cut productivity.

Causes & evidence

Big meals and short sleep can contribute. See sleep basics.

What to do

1. Eat smaller lunches.
2. Include protein and fiber.
3. Take a short walk.
4. Get enough sleep.

Common mistakes: Common mistakes: very large or heavy meals. Try lighter lunches and a short walk after eating. Good nighttime sleep matters most. Persistent fatigue deserves a check-up. Balance your lunch with protein, vegetables and whole grains rather than mostly refined carbs, and drink water. Get some daylight and movement after eating. If you rely on caffeine to get through every afternoon, look at your nighttime sleep first. Afternoon dips are a normal part of the body clock for many people, so short breaks help. Tiredness with other symptoms, like weight changes or shortness of breath, should be checked by a provider.

Speed Man tip: A 10-minute walk works wonders.

Wrap-up: Smaller lunches. Walk. Sleep.