Value Per Nutrient Food 0.31 g 100 grams Cystine Pork, cured, ham with natural juices, slice, bone-in, separable lean only, heated, pan-broil 0.31 g 100 grams Cystine Mollusks, mussel, blue, cooked, moist heat 0.31 g 100 grams Cystine Fish, tuna, light, canned in oil, drained solids 0.31 g 100 grams Cystine Turkey, young hen, wing, meat and skin, cooked, roasted 0.31 g 100 grams Cystine Fish, tuna, light, canned in oil, without salt, drained solids 0.31 g 100 grams Cystine Turkey, young hen, breast, meat and skin, cooked, roasted 0.31 g 100 grams Cystine Lamb, variety meats and by-products, lungs, cooked, braised 0.31 g 100 grams Cystine Turkey, young tom, light meat, meat only, cooked, roasted