Value Per Nutrient Food 1.73 g 100 grams Leucine Turkey, fryer-roasters, meat and skin and giblets and neck, raw 1.73 g 100 grams Leucine Beef, round, eye of round, roast, separable lean and fat, trimmed to 1/8" fat, choice, raw 1.73 g 100 grams Leucine Beef, brisket, flat half, separable lean only, trimmed to 1/8" fat, choice, raw 1.73 g 100 grams Leucine Beans, black, mature seeds, raw 1.73 g 100 grams Leucine Beef, round, knuckle, tip side, steak, separable lean and fat, trimmed to 0" fat, all grades, raw 1.73 g 100 grams Leucine Turkey breast, pre-basted, meat and skin, cooked, roasted 1.72 g 100 grams Leucine Fish, halibut, cooked, with skin (Alaska Native) 1.72 g 100 grams Leucine Chicken, broilers or fryers, light meat, meat and skin, cooked, fried, batter