L-Tryptophan Supplements: Clinical Uses and Behavioral Effects
What Are the Proven Clinical Uses for L-Tryptophan Supplements?
L-tryptophan supplements have demonstrated clinical efficacy for sleep disorders, mild to moderate depression, seasonal affective disorder, and certain behavioral conditions through their role as a serotonin precursor. Research shows that supplemental L-tryptophan can improve sleep onset, enhance mood in specific populations, and reduce aggressive behaviors, though effects are generally modest and work best when combined with appropriate cofactor nutrients and lifestyle modifications.