5-Hydroxytryptophan

5-HTP (5-Hydroxytryptophan) is an endogenous precursor to Serotonin. (Serotonin is a neurotransmitter found primarily in the digestive tract and central nervous system.)

5-HTP supplementation in fibromyalgia patients is associated with considerable improvements in anxiety, pain intensity, quality of sleep, fatigue, and the number of tender points. As there seems to be an overlap in symptoms between CFS/ME and Fibromyalgia, CFS/ME patients should try supplementing, in conjunction with their physicians' advice, with 5-HTP to see if the quality of sleep and lessened fatigue are experienced.