Tryptophan Is A Natural Building Block Of Serotonin, The Neurotransmitter That Plays An Important Role In Appetite, Mood, Normal Sleep Patterns, And Nervous-System Function10No Better, No More-Natural Way To Feel Relaxed10May Reduce Appetite (Cravings) For Carbohydrates10Health Concern: Supplementation1010L-Tryptophan Complete, Available In 30 And 120 Capsules (By Lidtke Technologies) And Designed For Metabolic Pathway Optimization10