Besides the mood-boosting B9, bananas also have tryptophan, "a precursor for serotonin," says Cassie Bjork, RD, LD of Healthy Simple Life, "and serotonin may be the most important brain chemical because is a natural anti-depressant and can treat, anxiety and insomnia, as well as other mood issues such as fatigue, irritability, agitation, anger, and aggression. Bananas also have norepinephrine, which regulates our "'fight or flight response,' which helps to regulate stress. They're an optimal, natural, real-food way to promote positive moods and help to prevent depression," she continues. "Good thing we don't need a prescription!"
