HTP is a popular supplement that can increase levels of the hormone serotonin in the brain. But very little evidence supports ...

A meta-analysis published in Neuropsychiatric Disease and Treatment found that 5-HTP supplementation improved symptoms of depression, particularly when taken at doses of 50–300 mg daily.

nutritionists have found that 5-Hydroxytryptophan (5-HTP) supplementation can improve sleep quality in Singaporean older adults, particularly in individuals with poor sleep patterns, and manage ...