Goji berry is the only known food source of secretagogue and has long been associated with longevity.(http://www.naturalnews.com/028098_goji_berries_antioxidants.html)Amino acids- Goji berries contain 18 amino acids including the eight essential amino acids, which are not produced by the body, that make it a complete protein.(http://www.naturalnews.com/028098_goji_berries_antioxidants.html)Amino a