Value Per Nutrient Food 2.87 g 100 grams Leucine Soybeans, mature seeds, roasted, no salt added 2.85 g 100 grams Leucine Beef, round, top round, separable lean only, trimmed to 0" fat, choice, cooked, braised 2.85 g 100 grams Leucine Beef, round, top round, separable lean only, trimmed to 0" fat, select, cooked, braised 2.84 g 100 grams Leucine Veal, shoulder, arm, separable lean only, cooked, braised 2.83 g 100 grams Leucine Soy flour, full-fat, roasted, crude protein basis (N x 6.25) 2.83 g 100 grams Leucine Soy flour, full-fat, roasted 2.83 g 100 grams Leucine Beef, round, top round, separable lean and fat, trimmed to 0" fat, all grades, cooked, braised 2.81 g 100 grams Leucine Beef, round, top round, separable lean and fat, trimmed to 0" fat, choice, cooked, braised