Value Per Nutrient Food 0.28 g 100 grams Cystine Pork, cured, ham with natural juices, shank, bone-in, separable lean only, unheated 0.28 g 100 grams Cystine USDA Commodity, Chicken, canned, meat only, with broth 0.28 g 100 grams Cystine Beef, chuck, under blade center steak, boneless, Denver Cut, separable lean only, trimmed to 0" fat, select, cooked, grilled 0.28 g 100 grams Cystine Beef, plate, inside skirt steak, separable lean and fat, trimmed to 0" fat, all grades, cooked, broiled 0.28 g 100 grams Cystine Beef, chuck, top blade, separable lean only, trimmed to 0" fat, all grades, cooked, broiled 0.28 g 100 grams Cystine Duck, domesticated, meat only, raw 0.28 g 100 grams Cystine Luncheon sausage, pork and beef 0.28 g 100 grams Cystine Chicken, broilers or fryers, neck, meat and skin, cooked simmered