We’ve always counted on caffeine as a quick pick-me-up, and now we know why: A recent study at the University of Georgia Department of Kinesiology suggests that breakfast paired with 200 milligrams of caffeine (the average amount in a mug of coffee) improves mood.
Aim for no more than 24 ounces a day; otherwise, that caffeine buzz becomes a bust.
A diet that’s low in B vitamins can cause mood swings and anxiety. An easy way to make sure you’re getting your recommended daily allowance is to eat a bowl of fortified whole-grain cereal, such as Kashi U, with 1% milk and a sliced banana every morning.
Foods that are rich in protein are naturally high in tyrosine, an amino acid that helps boost dopamine, the brain’s feel-good chemical. Go for two servings of fish per week and an egg or some lentils every day to help keep a good mood from going bad.