{"title":"L-Tryptophan: Serotonin and Sleep","description":"L-tryptophan is one of the 20 essential amino acids. In addition to being involved in protein synthesis, it is the precursor of serotonin, a hormone that controls mood in the brain.","products":[],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/6609\/6198\/collections\/tripstofano.jpg?v=1777379010","url":"https:\/\/www.esi.it\/en\/collections\/ingredients-l-tryptophan-1.oembed","provider":"ESI","version":"1.0","type":"link"}