10. Vitamin D and Resulting Hormones
Low levels of Vitamin D have been linked to depression. Scientists believe that Vitamin D help convert amino acid tryptophan into serotonin. Try to eat Vitamin D instead of taking supplements but limit supplemental intake to 600IUs for adults under 70.
Tryptophan: nuts, seeds, tofu, cheese, red meat, chicken, turkey, fish, oats, beans, lentils, and eggs
Seratonin: eggs, cheese, pineapples, tofu, salmon, nuts, seeds, and turkey
Vitamin D: fatty fish, beef liver, cheese, egg yolks, Vitamin D fortified foods