L-Tryptophan yog qhov tsim nyog rau kev loj hlob ib txwm muaj nyob rau hauv cov me nyuam mos thiab rau cov nitrogen tshuav nyiaj li cas rau cov neeg laus, uas tsis tuaj yeem tsim los ntawm ntau cov ntsiab lus hauv tib neeg thiab lwm yam tsiaj, qhia tias nws tsuas yog tau los ntawm kev noj cov tryptophan lossis tryptophan-muaj cov proteins rau tib neeg lub cev, uas yog tshwj xeeb tshaj yog nyob rau hauv chocolate, oats, mis nyuj, tsev cheese, nqaij liab, qe, ntses, nqaij qaib, sesame, almonds, buckwheat, spirulina, thiab txiv laum huab xeeb, thiab lwm yam. anxiolytic, thiab pab pw tsaug zog.