 Ma serotonin na-ahụghị na nnukwu quantities na ọtụtụ diets otú ahụ nwere na-eme ka ya onwe ya si oriri nke nwere L-tryptophan, dị ka chocolate, oat, unere, mịrị amị ụbọchị, mmiri ara ehi, bred, obi cheese, anụ, azụ, toki , ọkụkọ, sesame, chickpeas, na obere ego. 