Value Per Nutrient Food 2.16 g 100 grams Leucine Beef, round, bottom round, roast, separable lean and fat, trimmed to 1/8" fat, choice, cooked, roasted 2.16 g 100 grams Leucine Chicken, capons, giblets, cooked, simmered 2.16 g 100 grams Leucine Lamb, Australian, imported, fresh, leg, sirloin half, boneless, separable lean only, trimmed to 1/8" fat, cooked, roasted 2.16 g 100 grams Leucine Beef, top sirloin, steak, separable lean and fat, trimmed to 1/8" fat, select, cooked, broiled 2.16 g 100 grams Leucine Lamb, domestic, rib, separable lean only, trimmed to 1/4" fat, choice, cooked, broiled 2.16 g 100 grams Leucine Beef, round, knuckle, tip center, steak, separable lean and fat, trimmed to 0" fat, all grades, cooked, grilled 2.16 g 100 grams Leucine Fish, tuna, white, canned in oil, drained solids 2.16 g 100 grams Leucine Fish, tuna, white, canned in oil, without salt, drained solids