
29. Banana
Banana contains plenty of amino acids, B vitamins, and tryptophan that all play a role in serotonin production. The levels of serotonin in your brain greatly affect mood and deficiencies of serotonin are related to conditions like anxiety and Major Depressive disorder. Plus, the natural sugars provide a boost of sustainable energy to increase alertness.

The B vitamins in bananas work with the tryptophan, which is a precursor to the hormone serotonin. They also provide the energy needed to move it through the blood-brain barrier so it can improve mood. As an added benefit, banana is a starchy fruit that takes longer to digest so it prevents blood sugar spikes.