Value Per Nutrient Food 0.40 g 100 grams Cystine Beef, top sirloin, steak, separable lean only, trimmed to 0" fat, select, cooked, broiled 0.40 g 100 grams Cystine Seeds, sunflower seed kernels, oil roasted, with salt added 0.40 g 100 grams Cystine Beef, rib, shortribs, separable lean only, choice, cooked, braised 0.40 g 100 grams Cystine Pork, fresh, loin, sirloin (chops), boneless, separable lean only, cooked, broiled 0.40 g 100 grams Cystine Chicken, broilers or fryers, breast, meat only, cooked, roasted 0.40 g 100 grams Cystine Beef, round, top round steak, separable lean and fat, trimmed to 1/8" fat, all grades, cooked, broiled 0.40 g 100 grams Cystine Chicken, broilers or fryers, light meat, meat only, cooked, roasted 0.40 g 100 grams Cystine Beef, chuck, arm pot roast, separable lean and fat, trimmed to 1/8" fat, select, cooked, braised