Value Per Nutrient Food 0.25 g 100 grams Cystine Fish, tuna, white, canned in water, drained solids 0.25 g 100 grams Cystine Beef, tenderloin, steak, separable lean and fat, trimmed to 1/8" fat, all grades, raw 0.25 g 100 grams Cystine Leeks, (bulb and lower-leaf portion), freeze-dried 0.25 g 100 grams Cystine Fish, sea bass, mixed species, cooked, dry heat 0.25 g 100 grams Cystine Chicken, broilers or fryers, skin only, cooked, stewed 0.25 g 100 grams Cystine Spices, garlic powder 0.25 g 100 grams Cystine Pork, cured, ham with natural juices, spiral slice, meat only, boneless, separable lean only, heated, roasted 0.25 g 100 grams Cystine Beef, rib, whole (ribs 6-12), separable lean and fat, trimmed to 1/8" fat, prime, cooked, roasted