Frontiers Pathological role of methionine in the initiation and progression of biliary atresia protein synthesis protein intake. you can eat a pound of steak and only ~32% of those amino acids actually become new protein in your body. the rest gets converted to glucose Methionine Infusion Reproduces Liver Injury of Parenteral Nutrition Cholestasis Pediatric Research Homocysteine: The Hidden Risk Factor Many Doctors Miss The School of Applied Functional Medicine