Value Per Nutrient Food 2.20 g 100 grams Leucine Lamb, domestic, leg, whole (shank and sirloin), separable lean only, trimmed to 1/4" fat, choice, cooked, roasted 2.20 g 100 grams Leucine Pork, fresh, composite of trimmed retail cuts (leg, loin, shoulder, and spareribs), separable lean and fat, cooked 2.20 g 100 grams Leucine Nuts, butternuts, dried 2.20 g 100 grams Leucine Chicken, broilers or fryers, breast, meat and skin, cooked, roasted 2.20 g 100 grams Leucine Pork, fresh, loin, center rib (chops), bone-in, separable lean only, cooked, broiled 2.20 g 100 grams Leucine Beef, chuck, under blade center steak, boneless, Denver Cut, separable lean only, trimmed to 0" fat, select, cooked, grilled 2.20 g 100 grams Leucine Pork, fresh, loin, center rib (chops), boneless, separable lean and fat, cooked, broiled 2.19 g 100 grams Leucine Lamb, domestic, composite of trimmed retail cuts, separable lean only, trimmed to 1/4" fat, choice, cooked