Value Per Nutrient Food 1.35 g 100 grams Isoleucine Beef, chuck, mock tender steak, separable lean and fat, trimmed to 0" fat, USDA select, cooked, broiled 1.35 g 100 grams Isoleucine Beef, short loin, porterhouse steak, separable lean only, trimmed to 0" fat, all grades, cooked, broiled 1.35 g 100 grams Isoleucine Beef, rib, small end (ribs 10-12), separable lean only, trimmed to 1/8" fat, all grades, cooked, broiled 1.34 g 100 grams Isoleucine Beef, composite of trimmed retail cuts, separable lean only, trimmed to 0" fat, select, cooked 1.34 g 100 grams Isoleucine Beef, top sirloin, steak, separable lean only, trimmed to 1/8" fat, choice, cooked, broiled 1.34 g 100 grams Isoleucine Beef, chuck, under blade pot roast, boneless, separable lean only, trimmed to 0" fat, select, cooked, braised 1.34 g 100 grams Isoleucine Beef, composite of trimmed retail cuts, separable lean only, trimmed to 0" fat, choice, cooked 1.34 g 100 grams Isoleucine Beef, short loin, t-bone steak, separable lean only, trimmed to 0" fat, choice, cooked, broiled