The University of Alabama football program sought out Tsamma Juice last year after learning of a study on the company's watermelon juice, which is being led by the University's Human Nutrition Department.  The study focuses on the effects of L-citrulline, an amino acid most known for its use as a sports performance and cardiovascular health supplement.  Watermelon is the only food that provides a natural source of L-Citrulline and each 12 oz. bottle of Tsamma Juice has 600 mg of this powerful nutrient.