5-HTP
5-HTP, or 5-hydroxytryptophan, is a precursor to the neurotransmitter serotonin—which is essential for controlling mood, sleep and pain levels. The body produces 5-HTP from tryptophan, an amino acid found in small amounts in high-protein foods. It can also be taken in supplemental form. 5-HTP is believed to help increase serotonin production in the brain, which may positively influence mood. 5-HTP may also help with other health issues related to serotonin deficiency, including nervousness, body tension and stiffness and head cavity discomfort. Some research suggests that 5-HTP may also promote weight loss. For best results and quickest absorption, take 5-HTP on an empty stomach. Do not take 5-HTP for more than three consecutive months without consulting a healthcare practitioner.