Methionine and glutathione metabolism. Enzymes: (1) MAT ( S Download Scientific Diagram DL methionyl DL methionine as an efficient methionine source for promoting zootechnical performance and methionine related pathways in the whiteleg shrimp (Penaeus vannamei) British Journal of Nutrition Cambridge Core Glucoraphanin does not reduce plasma homocysteine in rats with sufficient Se supply via the induction of liver ARE regulated glutathione biosynthesis enzymes Food & Function (RSC Publishing) 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