Foods high in cystine

Trail mix tops the list with 0.33 g per serving. Ranked from 4,715 everyday foods (not packaged products); dried spices, protein powders and regional specialties are left out.

Per 100 gPer servingPer 100 calories
All foodsBakedBeefBeveragesBreakfast CerealsCereal Grains & PastaDairy & EggFast FoodsFats & OilsFinfish & ShellfishFruits & Fruit JuicesLamb, Veal, & GameLegumes & LegumeMeals, Entrees, & Side DishesNut & SeedPorkPoultryRestaurant FoodsSausages & Luncheon MeatsSnacksSoups, Sauces, & GraviesSweetsVegetables & Vegetable
  1. 1Trail mixSnacks · 1 cup (150 g)0.33 g
  2. 2Trail mix, regular, unsaltedSnacks · 1 cup (150 g)0.33 g
  3. 3Snacks, trail mix, regular, with chocolate chips, salted nuts and seedsSnacks · 1 cup (146 g)0.28 g
  4. 4Trail mix, chocolate chips, unsalted nutsSnacks · 1 cup (146 g)0.28 g
  5. 5Snickers Marathon Protein Bar, Caramel NutSnacks · 1 bar (80 g)0.27 g
  6. 6Tropical trail mixSnacks · 1 cup (140 g)0.16 g
  7. 7Plain pork skinsSnacks · 1 oz (28.4 g)0.15 g
  8. 8Power Bar, chocolateSnacks · 1 bar (68 g)0.15 g
  9. 9Barbecue-flavor pork skinsSnacks · 1 oz (28.4 g)0.15 g
  10. 10Snickers Marathon Energy Bar, all flavorsSnacks · 1 bar (55 g)0.13 g
  11. 11Soy chips, saltedSnacks · 1 oz (28.4 g)0.12 g
  12. 12Luna Bar, Nutz Over ChocolateSnacks · 1 bar (48 g)0.12 g
  13. 13Quaker Oatmeal To Go granola bars, all flavorsSnacks · 1 bar (60 g)0.12 g
  14. 14Plain hard granola barsSnacks · 1 bar (1 oz) (28 g)0.085 g
  15. 15Slim-Fast Optima meal bar, milk chocolate peanutSnacks · 1 bar (55 g)0.083 g
  16. 16Smoked beef sticksSnacks · 1 oz (28.4 g)0.082 g
  17. 17Bagel chips, plainSnacks · 1 oz (28.4 g)0.081 g
  18. 18Pita chips, saltedSnacks · 1 oz (28.4 g)0.081 g
  19. 19Rice-based oriental mix snacksSnacks · 1 oz (28.4 g)0.072 g
  20. 20Snacks, pretzels, hard, whole-wheat including both salted and unsaltedSnacks · 1 oz (28.4 g)0.071 g
  21. 21Nature Valley granola bar with yogurt coatingSnacks · 1 bar (35 g)0.067 g
  22. 22Almond hard granola barsSnacks · 1 oz (28.4 g)0.065 g
  23. 23Hard chocolate chip granola barsSnacks · 1 oz (28.4 g)0.063 g
  24. 24Salted wheat-based sesame sticksSnacks · 1 oz (28.4 g)0.057 g
  25. 25Wheat sesame sticks, unsaltedSnacks · 1 oz (28.4 g)0.057 g
  26. 26Hard peanut butter granola barSnacks · 1 oz (28.4 g)0.057 g
  27. 27Hard pretzels, enriched flour, unsaltedSnacks · 1 oz (28.4 g)0.056 g
  28. 28Hard pretzels, plain, unenriched flour, saltedSnacks · 1 oz (28.4 g)0.056 g
  29. 29Hard pretzels, plain, unenriched flour, unsaltedSnacks · 1 oz (28.4 g)0.056 g
  30. 30Nature Valley Sweet & Salty Nut granola bar, peanutSnacks · 1 bar (35 g)0.055 g
  31. 31Nature Valley Chewy Trail Mix barSnacks · 1 bar (35 g)0.053 g
  32. 32Microwave popcorn, 94% fat freeSnacks · 1 oz (28.4 g)0.052 g
  33. 33Raisin soft granola barsSnacks · 1 bar (1 oz) (28 g)0.048 g
  34. 34Hard pretzels, saltedSnacks · 1 oz (28.4 g)0.048 g
  35. 35Plain soft granola barsSnacks · 1 bar (1 oz) (28 g)0.046 g
  36. 36High fiber chewy bar, oats and chocolateSnacks · 1 bar (40 g)0.045 g
  37. 37Soft nut and raisin granola barSnacks · 1 bar (1 oz) (28 g)0.045 g
  38. 38Peanut butter soft granola barsSnacks · 1 bar (1 oz) (28 g)0.043 g
  39. 39Chocolate-coated hard pretzelsSnacks · 1 oz (28.4 g)0.042 g
  40. 40Shrimp crackersSnacks · 1 serving (28 g)0.041 g
  41. 41Soft chocolate chip granola barSnacks · 1 bar (1 oz) (28 g)0.04 g
  42. 42Reduced fat nacho-flavor tortilla chipsSnacks · 1 oz (28.4 g)0.039 g
  43. 43Soft graham marshmallow granola barSnacks · 1 bar (1 oz) (28 g)0.039 g
  44. 44Cheese corn puffs, unenrichedSnacks · 1 oz (28.4 g)0.039 g
  45. 45Peanut butter and chocolate chip soft granola barsSnacks · 1 bar (1 oz) (28 g)0.038 g
  46. 46Almond crisped rice barSnacks · 1 bar (1 oz) (28 g)0.038 g
  47. 47Corn snacks, extruded, onion flavorSnacks · 1 oz (28.4 g)0.038 g
  48. 48Ranch tortilla chipsSnacks · 1 oz (28.4 g)0.037 g
  49. 49Sour cream and onion potato chipsSnacks · 1 oz (28.4 g)0.037 g
  50. 50Taco-flavored tortilla chipsSnacks · 1 oz (28.4 g)0.036 g
  51. 51Nacho cheese tortilla chipsSnacks · 1 oz (28.4 g)0.035 g
  52. 52Nacho tortilla chips, enriched masaSnacks · 1 oz (28.4 g)0.035 g
  53. 53Milk chocolate coated soft granola bars, peanut butterSnacks · 1 oz (28.4 g)0.034 g
  54. 54SunChips Multigrain Snack, originalSnacks · 1 oz (28.4 g)0.034 g
  55. 55Crisped rice bar, chocolate chipSnacks · 1 bar (1 oz) (28 g)0.034 g
  56. 56Barbecue corn chipsSnacks · 1 oz (28.4 g)0.034 g
  57. 57Barbecue corn chips, enriched masaSnacks · 1 oz (28.4 g)0.034 g
  58. 58Plain corn chipsSnacks · 1 oz (28 g)0.033 g
  59. 59Banana chipsSnacks · 3 oz (85 g)0.033 g
  60. 60Quaker Dips granola barSnacks · 1 bar (31 g)0.03 g
  61. 61Plain corn conesSnacks · 1 oz (28.4 g)0.03 g
  62. 62Cheese-flavored potato chipsSnacks · 1 oz (28.4 g)0.029 g
  63. 63Caramel popcorn with peanutsSnacks · 1 oz (approx 2/3 cup) (28.4 g)0.029 g
  64. 64Reduced fat potato chipsSnacks · 1 oz (28.4 g)0.026 g
  65. 65Plain potato chips, saltedSnacks · 1 oz (28.4 g)0.025 g
  66. 66Plain potato chips, unsalted, hydrogenated oilSnacks · 1 oz (28.4 g)0.025 g
  67. 67Plain potato chips, unsaltedSnacks · 1 oz (28.4 g)0.025 g
  68. 68Salted plain potato chipsSnacks · 1 oz (28 g)0.025 g
  69. 69Cheese-flavored dried potato chipsSnacks · 1 oz (28.4 g)0.023 g
  70. 70Chocolate coated hard pretzelsSnacks · 1 serving (28 g)0.022 g
  71. 71Corn snacks, extruded, cheese flavorSnacks · 1 oz crunchy (about 21 pieces) (28.4 g)0.022 g
  72. 72Sour cream and onion dried potato chipsSnacks · 1 oz (28.4 g)0.022 g
  73. 73Plain potato chips, made from dried potatoesSnacks · 1 oz (28 g)0.021 g
  74. 74Reduced-fat dried potato chipsSnacks · 1 oz (28.4 g)0.021 g
  75. 75Sweet potato chips, unsaltedSnacks · 1 oz (28.4 g)0.019 g
  76. 76Microwave popcorn, oil-popped, regularSnacks · 1 cup (11 g)0.018 g
  77. 77Oil-popped white popcorn, saltedSnacks · 1 cup (11 g)0.018 g
  78. 78Milk chocolate coated soft granola bars, chocolate chipSnacks · 1 bar (1 oz) (28 g)0.018 g
  79. 79Cheese-flavored popcornSnacks · 1 cup (11 g)0.018 g
  80. 80Air-popped popcornSnacks · 1 cup (8 g)0.017 g
  81. 81Air-popped popcorn, unsaltedSnacks · 1 cup (8 g)0.017 g
  82. 82Popcorn cakesSnacks · 1 cake (10 g)0.016 g
  83. 83Vegetable chips, made from garden vegetablesSnacks · 1 oz (28.4 g)0.015 g
  84. 84Taro chipsSnacks · 1 oz (28.4 g)0.014 g
  85. 85Microwave popcorn, butter flavor, palm oilSnacks · 1 cup (7.9 g)0.012 g
  86. 86Brown rice and buckwheat rice cakesSnacks · 1 cake (9 g)0.012 g
  87. 87Brown rice and buckwheat cakes, unsaltedSnacks · 1 cake (9 g)0.012 g
  88. 88Brown rice and rye rice cakesSnacks · 1 cake (9 g)0.011 g
  89. 89Microwave popcorn, butter flavorSnacks · 1 cup (7.9 g)0.011 g
  90. 90Corn cakesSnacks · 1 cake (9 g)0.011 g
  91. 91Corn cakes, very low sodiumSnacks · 1 cake (9 g)0.011 g
  92. 92Caramel popcorn, without peanutsSnacks · 1 oz (28.4 g)0.011 g
  93. 93Brown rice and corn rice cakesSnacks · 1 cake (9 g)0.01 g
  94. 94Brown rice multigrain rice cakesSnacks · 1 cake (9 g)0.01 g
  95. 95Brown rice multigrain cakes, unsaltedSnacks · 1 cake (9 g)0.01 g
  96. 96Brown rice chipsSnacks · 1 cake (9 g)0.009 g
  97. 97Brown rice cakes, unsaltedSnacks · 1 cake (9 g)0.009 g
  98. 98Plain brown rice crackersSnacks · 1 cake (9 g)0.009 g
  99. 99Brown rice cakes, sesame seedSnacks · 1 cake (9 g)0.008 g
  100. 100Brown rice cakes, sesame seed, unsaltedSnacks · 1 cake (9 g)0.008 g

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Source: USDA FoodData Central. Per serving uses each food's typical USDA portion. Daily Values are the FDA's for adults and children 4 years and older.