Historically, the amino acid tryptophan has been considered to play a role in cancer development and the aging process. In recent times, this nutrient has been associated with eosinophila myalgia syndrome - a new human disease that attacks the muscular system. This detailed book examines the implications of the large measure of fresh information gained in recent years. Tryptophan: Biochemical and Health Implications presents an up-to-date, comprehensive view of how L-tryptophan acts and discusses its pivotal role in protein metabolism.