Bananas contain the important amino acid tryptophan and also vitamins A, B6 and C, fiber, potassium, phosphorous, iron and carbohydrate. Mood-boosting carbohydrates aid in the absorption of tryptophan in the brain, and vitamin B6 helps convert the tryptophan into the mood-lifting hormone serotonin. This helps to boost your mood and also aids in restful sleep.
Because of its ability to raise serotonin levels, tryptophan has been used in the treatment of a variety of conditions, such as insomnia, depression and anxiety. It’s the potassium in bananas that make them such a good snack for those feeling stressed or tired. It’s important in the transmission of nerve impulses, heart rhythm and muscle function.