Value Per Nutrient Food 1.23 g 100 grams Isoleucine Fish, trout, mixed species, cooked, dry heat 1.23 g 100 grams Isoleucine Beef, round, tip round, roast, separable lean and fat, trimmed to 1/8" fat, choice, cooked, roasted 1.23 g 100 grams Isoleucine Cheese, mexican, queso asadero 1.23 g 100 grams Isoleucine Chicken, broilers or fryers, light meat, meat only, raw 1.23 g 100 grams Isoleucine Turkey, all classes, light meat, raw 1.23 g 100 grams Isoleucine Beef, chuck eye steak, boneless, separable lean only, trimmed to 0" fat, choice, cooked, grilled 1.22 g 100 grams Isoleucine Beef, shoulder top blade steak, boneless, separable lean only, trimmed to 0" fat, select, cooked, grilled 1.22 g 100 grams Isoleucine Beef, ground, 85% lean meat / 15% fat, crumbles, cooked, pan-browned