| Cystine per 100 grams | |
| Egg, chicken, white, dried | 2100 mg |
| Caseinate, sodium, DAMIPRO RHV | 1300 mg |
| Egg, chicken, whole, dried | 1100 mg |
| Wheat germ, raw | 770 mg |
| Soya flour, full fat | 650 mg |
| Tongue, pig, cured | 630 mg |
| Tongue, pig, raw | 630 mg |
| Egg, chicken, yolk, dried | 600 mg |
| Beans, soy, dried | 480 mg |
| Linseeds, raw | 480 mg |
| Sesame seed, decorticated | 460 mg |
| Poppy seeds | 460 mg |
| Wheat bran | 440 mg |
| Sesame seeds, whole, dried | 440 mg |
| Brazil nuts | 420 mg |
| Oats, rolled, not enriched | 390 mg |
| Oats, rolled, average values | 390 mg |
| Mussels, boiled | 380 mg |
| Oats, rolled, enriched | 380 mg |
| Chicken, flesh and skin, deepfried | 380 mg |
| Pistachio nuts, dry roasted | 370 mg |
| Pistachio nuts, dried | 360 mg |
| Goose, flesh only, raw | 350 mg |
| Cashew nuts, oil roasted | 350 mg |
| Nut, pea, dried | 330 mg |
| Lentils, sprouted, raw | 330 mg |
| Peanut butter | 330 mg |
| Nut, pea, oilroasted and salted | 320 mg |
| Chicken, flesh and skin, battered, deepfried | 310 mg |
| Duck, breast, flesh only, raw | 310 mg |
| Egg, goose, whole, raw | 310 mg |
| Pheasant, flesh and skin, raw | 310 mg |
| Pheasant, flesh only, raw | 310 mg |
| Egg, hen, whole, pasteurized, frozen | 300 mg |
| Cocoa, instant, med milk, powder | 300 mg |
| Egg, duck, whole, raw | 290 mg |
| Egg, hen, whole, boiled, frozen | 290 mg |
| Crab claws, meat, canned | 290 mg |
| Crab claws, meat, raw | 290 mg |
| Peas, chick/garbanzo, dry, raw | 290 mg |
| Haddock, breaded, fried | 280 mg |
| Duck, flesh only, raw | 280 mg |
| Egg, chicken, white, raw | 280 mg |
| Cashew nuts, dry roasted | 280 mg |
| Milk, dry, skimmed, powder | 280 mg |
| Pine nuts, pignolias, dried | 280 mg |
| Yeast extract, Marmite | 270 mg |
| Almond, raw | 270 mg |
| Mussels, in water, canned | 270 mg |
| Egg, hen, yolk, sugar added, pasteurized, frozen | 270 mg |
| Broiler, flesh and skin, raw | 260 mg |
| Crab, boiled | 260 mg |
| Egg, chicken, whole, raw | 260 mg |
| Chicken, hen, flesh only | 260 mg |
| Egg, hen, white, pasteurized, frozen | 250 mg |
| Norway lobster, raw | 250 mg |
| Goose, flesh and skin, raw | 250 mg |
| Egg, hen, yolk, salted, pasteurized, frozen | 250 mg |
| Liver, duck, raw | 250 mg |
| Lentils, dried | 250 mg |
| Lobster, raw | 250 mg |
| Lobster, canned | 240 mg |
| Pork, ham, smoked | 240 mg |
| Lobster, boiled | 240 mg |
| Walnuts | 240 mg |
| Gizzard, chicken, raw | 240 mg |
| Whey, sweet, dried | 240 mg |
| Salmon, canned | 230 mg |
| Chicken, hen, flesh and skin, raw | 230 mg |
| Egg, chicken, yolk, raw | 230 mg |
| Beans, white, dried | 230 mg |
| Liver, chicken (hen), raw | 230 mg |
| Liver, pig, raw | 230 mg |
| Nut, hazel (UK), filbert (USA), dried | 230 mg |
| Liver, goose, raw | 220 mg |
| Rye-flour, wheat-flour, bolted | 220 mg |
| Kippers, in oil, canned | 220 mg |
| Fennel seed | 220 mg |
| Milk, dry, whole, powder | 210 mg |
| Beans, mung, dried, raw | 210 mg |
| Millet, whole-grain | 210 mg |
| Cocoa, powder | 210 mg |
| Heart, chicken, raw | 210 mg |
| Sole, raw | 210 mg |
| Haddock, raw | 210 mg |
| Bread-crumbs | 210 mg |
| Kidney, calf, raw | 200 mg |
| Sweatbread, lamb, raw | 200 mg |
| Liver, broiler or fryer, raw | 200 mg |
| Macaroni, spaghetti, whole meal, raw | 200 mg |
| Barley flour, raw | 190 mg |
| Bread, white, with wheat bran | 190 mg |
| Salmon, smoked | 190 mg |
| Kidney, ox, raw | 190 mg |
| Barley groats, raw | 190 mg |
| Mussel, raw | 190 mg |
| Lemon sole, raw | 190 mg |
| Wheat, cracked kernels, parboiled (bulgur), raw | 190 mg |
| Coffee, instant, decaffeinated, powder | 190 mg |
| Macaroni, spaghetti, raw | 190 mg |
| Tuna, raw | 190 mg |
| Heart, beef, raw | 180 mg |
| Turbot, raw | 180 mg |
| Tomato, dried | 180 mg |
| Wheat, kernels, whole/cracked | 180 mg |
| Garfish, raw | 180 mg |
| Kidney, pig, raw | 180 mg |
| Cod, roe, raw | 180 mg |
| Duck, flesh and skin, raw | 180 mg |
| Wheat, flour, wholemeal | 180 mg |
| Lamb, leg, defatted, raw | 170 mg |
| Veal, lean meat, raw | 170 mg |
| Tuna, in water, canned | 170 mg |
| Wheat flour | 170 mg |
| Herring, autumn, raw | 170 mg |
| Lamb, leg, average values, raw | 170 mg |
| Garlic, dried, powder | 170 mg |
| Veal, thin fat, raw | 170 mg |
| Tuna, in oil, canned | 170 mg |
| Cream Crackers | 170 mg |
| Mutton, round, raw | 170 mg |
| Stockfish, cod, split, salted and dried | 170 mg |
| Bread, roll, danish | 170 mg |
| Crispbread, knackebrot, rye, fine | 170 mg |
| Bread, white, for sausages | 170 mg |
| Bread, white, coarse grain | 160 mg |
| Bread, white, with whole kernels | 160 mg |
| Rabbit, flesh only, raw | 160 mg |
| Sardine, in oil, canned | 160 mg |
| Sprat (sardine), in oil, canned | 160 mg |
| Liver, ox, raw | 160 mg |
| Mutton, shoulder, raw | 160 mg |
| Tongue, ox, raw | 160 mg |
| Herring, raw | 160 mg |
| Pork, ham, smoked, boiled | 160 mg |
| Sausage, salami | 160 mg |
| Pecans, dry roasted | 160 mg |
| Rice bran | 160 mg |
| Wheat rusk | 160 mg |
| Wheat rusk | 160 mg |
| Bread, white, with sunflower kernels | 160 mg |
| Heart, veal, raw | 160 mg |
| Veal, medium fat, raw | 160 mg |
| Lamb, flank, spiced, cooked | 160 mg |
| Crispbread, knackebrot, wheat, coarse | 160 mg |
| Chicken, flesh and skin, grilled | 160 mg |
| Shrimp, prawn, boiled | 160 mg |
| Lamb, leg with fat, raw | 160 mg |
| Lamb, shoulder, raw | 160 mg |
| Semolina | 160 mg |
| Crispbread, knackebrot, rye, coarse (Husmans) | 150 mg |
| Pork, oyster cut, lean, raw | 150 mg |
| Liver, calf, raw | 150 mg |
| Halibut, atlantic, raw | 150 mg |
| Herring, smoked | 150 mg |
| Pork, loin (filet royal), lean, raw | 150 mg |
| Beef, shin + leg (shank), raw | 150 mg |
| Pork, meat, lean, approx. 3 % fat, raw | 150 mg |
| Beef, meat, 5-10 % fat, raw | 150 mg |
| Pecans, dried | 150 mg |
| Bacon crisps | 150 mg |
| Veal, eye of round, salted, boiled | 150 mg |
| Beef, rumpsteak "cap off", raw | 150 mg |
| Crispbread, wheat | 150 mg |
| Heart, pork, raw | 150 mg |
| Plaice, raw | 150 mg |
| Eel, smoked | 150 mg |
| Pop corn, oil and salt added, traditional | 150 mg |
| Pork, loin (medaillon), lean, raw | 150 mg |
| Pork, ham, wok strips from topside, raw | 150 mg |
| Beef, topside "cap on", raw | 150 mg |
| Beef, eye of round, raw | 150 mg |
| Pop corn, oil and salt added | 150 mg |
| Bread, white | 150 mg |
| Sausage, beef salami | 150 mg |
| Beef, T-bone steak, raw | 150 mg |
| Mackerel, smoked | 150 mg |
| Peas, mature, dry, raw | 150 mg |
| Pork, loin (sauté slices), lean, raw | 150 mg |
| Beef, topside "cap off", raw | 150 mg |
| Beef, meat, lean (<5 % fat), raw | 150 mg |
| Pecans, oil roasted | 150 mg |
| Beef brisket, soaked in brine | 150 mg |
| Beef, sirloin, raw | 150 mg |
| Beef, striploin "cap off", raw | 150 mg |
| Pork, ham, topside (M. Semimembranosus), lean, raw | 150 mg |
| Pork, loin, lean, raw | 150 mg |
| Bisquit, sweet | 150 mg |
| Veal, fat, raw | 150 mg |
| Halibut, atlantic, smoked | 150 mg |
| Pork, tenderloin, trimmed, raw | 150 mg |
| Beef, outside, round, raw | 150 mg |
| Chicken, breast, flesh and skin, raw | 140 mg |
| Spotted catfish, fillet, raw | 140 mg |
| Pork, ham, chump (M. Glutaei Etc.), lean, raw | 140 mg |
| Tongue, calf, cured | 140 mg |
| Squab (pigeon), flesh, raw | 140 mg |
| Mackerel, raw | 140 mg |
| Eel, raw | 140 mg |
| Pork, ham, schnitzel, escalope, raw | 140 mg |
| Beef, thick flank "cap off", raw | 140 mg |
| Tongue, calf, raw | 140 mg |
| Pork, ham, bayonne style, deboned | 140 mg |
| Sausage, liver sausage | 140 mg |
| Beef, striploin "cap on", raw | 140 mg |
| Beef, neck, raw | 140 mg |
| Rye kernels, whole/cracked | 140 mg |
| Pork, hand, lean, raw | 140 mg |
| Wolffish (catfish), raw | 140 mg |
| Horse, meat, raw | 140 mg |
| Pork, tenderloin, trimmed, raw | 140 mg |
| Sausage, salami | 140 mg |
| Pork, chop, raw | 140 mg |
| Pork, loin fillet, smoked | 140 mg |
| Pork, minced, approx. 6% fat, raw | 140 mg |
| Beef, meat, approx. 15 % fat, raw | 140 mg |
| Beef, shoulder, dorsal part, raw | 140 mg |
| Marzipan | 140 mg |
| Pork, legmuscles without knuckle, lean, raw | 140 mg |
| Pork, ham, thick flank (M. Quadiceps Femoris), lean, raw | 140 mg |
| Cheese, hard, Parmesan, grated | 140 mg |
| Pork, cheek meat, lean, raw | 140 mg |
| Pork, flank, spiced, cooked | 140 mg |
| Crispbread, knackebrot, wheat, fine | 140 mg |
| Rye flour, dark, whole meal | 140 mg |
| Beef, rump, raw | 140 mg |
| Beef, shoulder, ventral part | 140 mg |
| Salmon, gravad | 140 mg |
| Pork, ham, silverside (M. Biceps Femoris), lean, raw | 140 mg |
| Bread, white, with cracked chestnuts | 140 mg |
| Turkey, flesh only, raw | 140 mg |
| Beef, rumpsteak "cap on", raw | 140 mg |
| Beef, fillet, defatted, raw | 140 mg |
| Beef, chuck, raw | 140 mg |
| Pork, ham, silverside (M. Biceps Femoris), 5 mm rind, raw | 130 mg |
| Chicken, flesh only, raw | 130 mg |
| Pork, ham, outside muscle (M. biceps femoris), shredded, raw | 130 mg |
| Pork, loin, defatted (approx. 3 mm fat), raw | 130 mg |
| Pork, ham, viking steak, raw | 130 mg |
| Yeast, dried | 130 mg |
| Cod, fillet, boiled | 130 mg |
| Pork, ham, silverside (M. Semitendinosus), lean, raw | 130 mg |
| Lamb, loin, raw | 130 mg |
| Pork, hand, diced, lean, raw | 130 mg |
| Pork, loin with rind, raw | 130 mg |
| Pork, neck, smoked, boiled | 130 mg |
| Beef, entrecote "cap on", raw | 130 mg |
| Cod, fillet, smoked, with skin | 130 mg |
| Turkey, flesh and skin, raw | 130 mg |
| Pork, hand with rind, raw | 130 mg |