L-Tryptophan ya zama dole don haɓakar al'ada a cikin jarirai da ma'aunin nitrogen a cikin manya, waɗanda ba za a iya haɗa su daga ƙarin abubuwa na yau da kullun a cikin mutane da sauran dabbobi ba, suna ba da shawarar cewa ana samun su ta hanyar cin abinci na tryptophan ko tryptophan mai ɗauke da sunadarai ga jikin ɗan adam. wanda ke da yawa musamman a cikin cakulan, hatsi, madara, cuku gida, jan nama, qwai, kifi, kaji, sesame, almonds, buckwheat, spirulina, da gyada, da dai sauransu Ana iya amfani da shi azaman kari na sinadirai don amfani dashi azaman antidepressant, anxiolytic, da taimakon barci.