Value Per Nutrient Food 2.28 g 100 grams Leucine Pork, fresh, composite of trimmed retail cuts (leg, loin, and shoulder), separable lean only, cooked 2.28 g 100 grams Leucine Beef, chuck, mock tender steak, separable lean only, trimmed to 0" fat, choice, cooked, broiled 2.28 g 100 grams Leucine Turkey, all classes, dark meat, cooked, roasted 2.28 g 100 grams Leucine Beef, shoulder steak, boneless, separable lean and fat, trimmed to 0" fat, all grades, cooked, grilled 2.28 g 100 grams Leucine Beef, chuck, top blade, separable lean and fat, trimmed to 0" fat, choice, cooked, broiled 2.27 g 100 grams Leucine Beef, chuck, mock tender steak, separable lean and fat, trimmed to 0" fat, USDA choice, cooked, broiled 2.27 g 100 grams Leucine Cheese, colby 2.27 g 100 grams Leucine Beef, top sirloin, steak, separable lean and fat, trimmed to 1/8" fat, choice, cooked, pan-fried