5-hydroxytryptophan (5-HTP) is the precursor to the neurotransmitter serotonin. Side effects of 5-HTP can vary, but may include serotonin syndrome, gastrointestinal issues, heart and blood vessel ...
L-5 hydroxytryptophan (5-HTP) is a natural chemical in the body that is also available as a nutritional supplement. Share on Pinterest Some people believe that 5-HTP may help with serotonin-related ...