Value Per Nutrient Food 2.15 g 100 grams Leucine Lamb, domestic, shoulder, arm, separable lean only, trimmed to 1/4" fat, choice, cooked, broiled 2.15 g 100 grams Leucine Beef, round, tip round, roast, separable lean and fat, trimmed to 1/8" fat, choice, cooked, roasted 2.15 g 100 grams Leucine Lamb, New Zealand, imported, frozen, leg, whole (shank and sirloin), separable lean only, cooked, roasted 2.15 g 100 grams Leucine Beef, composite of trimmed retail cuts, separable lean and fat, trimmed to 0" fat, choice, cooked 2.15 g 100 grams Leucine Seeds, watermelon seed kernels, dried 2.15 g 100 grams Leucine Beef, round, tip round, roast, separable lean and fat, trimmed to 0" fat, choice, cooked, roasted 2.15 g 100 grams Leucine Lamb, Australian, imported, fresh, leg, sirloin chops, boneless, separable lean only, trimmed to 1/8" fat, cooked, broiled 2.15 g 100 grams Leucine Beef, short loin, porterhouse steak, separable lean and fat, trimmed to 0" fat, USDA select, cooked, broiled