Value Per Nutrient Food 1.29 g 100 grams Leucine Mollusks, scallop, mixed species, cooked, breaded and fried 1.29 g 100 grams Leucine KENTUCKY FRIED CHICKEN, Fried Chicken, EXTRA CRISPY, Breast, meat and skin with breading 1.29 g 100 grams Leucine Fast foods, cheeseburger; single, large patty; plain 1.29 g 100 grams Leucine Lamb, domestic, shoulder, blade, separable lean and fat, trimmed to 1/4" fat, choice, raw 1.29 g 100 grams Leucine Fish, tuna salad 1.29 g 100 grams Leucine Fish, roughy, orange, raw 1.29 g 100 grams Leucine Beef, rib, whole (ribs 6-12), separable lean and fat, trimmed to 1/8" fat, choice, raw 1.29 g 100 grams Leucine Lamb, domestic, shoulder, whole (arm and blade), separable lean and fat, trimmed to 1/4" fat, choice, raw