This deli counter staple contains an amino acid called tryptophan. “Tryptophan helps the body produce the mood-boosting brain chemical serotonin, which has been shown to aid in relaxation and sleep,” says Marisa Moore, R.D., a spokesperson for the American Dietetic Association.
Best bet: It takes about an hour for tryptophan to act on your brain, so plan your night noshing accordingly.
Other sources of tryptophan: Chicken, tuna, soy foods, whole-grain bread
Try this: Get a double dose of tryptophan by combining turkey and whole-grain bread.