Value Per Nutrient Food 1.75 g 100 grams Leucine Chicken, roasting, meat and skin and giblets and neck, cooked, roasted 1.75 g 100 grams Leucine Fish, sucker, white, cooked, dry heat 1.75 g 100 grams Leucine Beef, round, top round, steak, separable lean and fat, trimmed to 1/8" fat, choice, raw 1.75 g 100 grams Leucine Beans, great northern, mature seeds, raw 1.75 g 100 grams Leucine Pork, fresh, loin, sirloin (chops or roasts), bone-in, separable lean and fat, raw 1.75 g 100 grams Leucine Chicken, roasting, dark meat, meat only, cooked, roasted 1.74 g 100 grams Leucine Fish, seatrout, mixed species, cooked, dry heat 1.74 g 100 grams Leucine Beef, top sirloin, steak, separable lean only, trimmed to 1/8" fat, choice, raw