I try to eat at least six baby tomatoes in my salad each day for lunch because tomatoes contain lots of folic acid and alpha-lipoic acid, both of which are good for fighting depression. According to research published in the Journal of Psychiatry and Neuroscience, many studies show an elevated incidence of folate deficiency in patients with depression. In most of the studies, about one-third of depression patients were deficient in folate.
Folic acid can prevent an excess of homocysteine — which restricts the production of important neurotransmitters like serotonin, dopamine, and norepinephrine — from forming in the body. Alpha-lipoic acid keeps coming up as I read more about nutrition and the brain, so I have begun to take it as a supplement, as well. It helps the body convert glucose into energy, and therefore stabilizes mood.