Digestion 23/07/2019 Digestion is the process of breaking down food in the digestive tract in the body. During exercise, this process is very limited because blood supply is drawn away from the gastro-intestinal tract (GIT) to focus on supporting the muscles. Related Articles: OptimAAte Amino Acids vs Protein SupplementsGlossary: Catabolic responseHorsepower Feed Supplements Release InnovAAte ProductsAmino acids can restore inner health and reduce fatigueHydration requires electrolytes + amino acids