Value Per Nutrient Food 1.28 g 100 grams Isoleucine Beef, round, eye of round, roast, separable lean and fat, trimmed to 1/8" fat, choice, cooked, roasted 1.28 g 100 grams Isoleucine Veal, breast, plate half, boneless, separable lean and fat, cooked, braised 1.28 g 100 grams Isoleucine Beef, tenderloin, steak, separable lean only, trimmed to 0" fat, select, cooked, broiled 1.28 g 100 grams Isoleucine Crustaceans, spiny lobster, mixed species, cooked, moist heat 1.27 g 100 grams Isoleucine Beef, flank, steak, separable lean only, trimmed to 0" fat, choice, cooked, braised 1.27 g 100 grams Isoleucine Lamb, domestic, leg, shank half, separable lean and fat, trimmed to 1/4" fat, choice, cooked, roasted 1.27 g 100 grams Isoleucine Beef, round, outside round, bottom round, steak, separable lean and fat, trimmed to 0" fat, select, cooked, grilled 1.27 g 100 grams Isoleucine Beef, round, bottom round, roast, separable lean only, trimmed to 1/8" fat, all grades, cooked