Value Per Nutrient Food 0.81 g 100 grams Isoleucine Fish, wolffish, Atlantic, raw 0.81 g 100 grams Isoleucine Sandwiches and burgers, roast beef sandwich with cheese 0.80 g 100 grams Isoleucine Lamb, variety meats and by-products, pancreas, cooked, braised 0.80 g 100 grams Isoleucine Lamb, New Zealand, imported, frozen, shoulder, whole (arm and blade), separable lean and fat, raw 0.80 g 100 grams Isoleucine Cheese, feta 0.80 g 100 grams Isoleucine Beef, chuck eye Country-Style ribs, boneless, separable lean and fat, trimmed to 0" fat, choice, raw 0.80 g 100 grams Isoleucine Beef, chuck eye steak, boneless, separable lean and fat, trimmed to 0" fat, all grades, raw 0.80 g 100 grams Isoleucine Beef, chuck, under blade center steak, boneless, Denver Cut, separable lean and fat, trimmed to 0" fat, choice, raw