Value Per Nutrient Food 2.21 g 100 grams Leucine Beef, chuck eye roast, boneless, America's Beef Roast, separable lean only, trimmed to 0" fat, all grades, cooked, roasted 2.21 g 100 grams Leucine Pork, cured, ham, center slice, country-style, separable lean only, raw 2.21 g 100 grams Leucine Veal, leg (top round), separable lean and fat, cooked, roasted 2.21 g 100 grams Leucine Lamb, domestic, leg, sirloin half, separable lean only, trimmed to 1/4" fat, choice, cooked, roasted 2.20 g 100 grams Leucine Pork, fresh, shoulder, arm picnic, separable lean and fat, cooked, braised 2.20 g 100 grams Leucine Beef, round, tip round, roast, separable lean only, trimmed to 0" fat, choice, cooked, roasted 2.20 g 100 grams Leucine Pork, fresh, enhanced, shoulder, (Boston butt), blade (steaks), separable lean and fat, cooked, braised 2.20 g 100 grams Leucine Beef, flank, steak, separable lean and fat, trimmed to 0" fat, all grades, cooked, broiled