Value Per Nutrient Food 1.81 g 100 grams Leucine Beef, round, top round, steak, separable lean only, trimmed to 1/8" fat, choice, raw 1.80 g 100 grams Leucine Beef, rib, large end (ribs 6-9), separable lean and fat, trimmed to 0" fat, choice, cooked, roasted 1.80 g 100 grams Leucine Cowpeas, common (blackeyes, crowder, southern), mature seeds, raw 1.80 g 100 grams Leucine Pork, ground, 72% lean / 28% fat, cooked, pan-broiled 1.80 g 100 grams Leucine Fish, butterfish, cooked, dry heat 1.80 g 100 grams Leucine Beef, rib, whole (ribs 6-12), separable lean and fat, trimmed to 1/8" fat, all grades, cooked, roasted 1.80 g 100 grams Leucine Beef, chuck for stew, separable lean and fat, all grades, raw 1.80 g 100 grams Leucine Beef, brisket, flat half, boneless, separable lean only, trimmed to 0" fat, select, raw