Copper content of common foods
A quick low-copper-diet reference for Wilson disease: which everyday foods are high in copper and best avoided, which to limit, and which are generally safe. Copper values are per 100 g from USDA FoodData Central. Tap any food for detail. To look up a food that is not listed, use the copper search tool (13,565 foods).
Avoid Avoid — high copper
| Food | Cu mg/100 g |
|---|---|
| Beef liver 牛肝 Organ meats |
14.5 |
| Dried shiitake mushrooms 干香菇 Vegetables |
5.16 |
| Sesame seeds 芝麻 Nuts & seeds |
4.08 |
| Cocoa powder 可可粉 Chocolate & cocoa |
3.79 |
| Oysters 生蚝/牡蛎 Shellfish |
2.68 |
| Cashews 腰果 Nuts & seeds |
2.22 |
| Sunflower seeds 葵花籽 Nuts & seeds |
1.8 |
| Walnuts 核桃 Nuts & seeds |
1.59 |
| Lobster 龙虾 Shellfish |
1.55 |
| Pistachios 开心果 Nuts & seeds |
1.29 |
| Dark chocolate 黑巧克力 Chocolate & cocoa |
1.25 |
| Flaxseed 亚麻籽 Nuts & seeds |
1.22 |
| Pumpkin seeds 南瓜籽 Nuts & seeds |
1.22 |
| Peanuts 花生 Nuts & seeds |
1.14 |
| Crab 螃蟹 Shellfish |
0.814 |
| Clams 蛤蜊 Shellfish |
0.688 |
| Chicken liver 鸡肝 Organ meats |
0.57 |
| Crayfish 小龙虾 Shellfish |
0.53 |
Limit Limit — moderate-to-high
| Food | Cu mg/100 g |
|---|---|
| Almonds 杏仁 Nuts & seeds |
1.1 |
| Chia seeds 奇亚籽 Nuts & seeds |
0.924 |
| Peanut butter 花生酱 Nuts & seeds |
0.58 |
| Milk chocolate 牛奶巧克力 Chocolate & cocoa |
0.491 |
| Soybeans 大豆 Soy & legumes |
0.407 |
| Oats 燕麦 Grains |
0.391 |
| Shrimp 虾 Shellfish |
0.38 |
| Tofu 豆腐 Soy & legumes |
0.38 |
| Dates 椰枣 Fruit |
0.362 |
| Mushrooms (fresh) 蘑菇 Vegetables |
0.36 |
| Chickpeas 鹰嘴豆 Soy & legumes |
0.35 |
| Mussels 青口/贻贝 Shellfish |
0.149 |
| Scallops 扇贝 Shellfish |
0.033 |
Moderate Moderate — small portions
| Food | Cu mg/100 g |
|---|---|
| Salmon 三文鱼 Fish |
0.321 |
| Raisins 葡萄干 Fruit |
0.272 |
| Lentils 扁豆 Soy & legumes |
0.25 |
| Kidney beans 红腰豆 Soy & legumes |
0.242 |
| Duck 鸭肉 Protein |
0.231 |
| Black beans 黑豆 Soy & legumes |
0.209 |
| Quinoa 藜麦 Grains |
0.192 |
| Avocado 牛油果 Fruit |
0.19 |
Generally OK Generally OK — low copper
| Food | Cu mg/100 g |
|---|---|
| Sweet potato 红薯 Vegetables |
0.151 |
| Spinach 菠菜 Vegetables |
0.13 |
| Grapes 葡萄 Fruit |
0.127 |
| White bread 白面包 Grains |
0.124 |
| Potato 土豆 Vegetables |
0.11 |
| Banana 香蕉 Fruit |
0.1 |
| Pasta 意面 Grains |
0.099 |
| Eggs 鸡蛋 Protein |
0.08 |
| Pork 猪肉 Protein |
0.079 |
| Beef steak 牛排 Protein |
0.073 |
| Tuna 金枪鱼 Fish |
0.071 |
| White rice 白米饭 Grains |
0.069 |
| Broccoli 西兰花 Vegetables |
0.059 |
| Tomato 番茄 Vegetables |
0.059 |
| Carrot 胡萝卜 Vegetables |
0.045 |
| Orange 橙子 Fruit |
0.045 |
| Chicken breast 鸡胸肉 Protein |
0.04 |
| Cod 鳕鱼 Fish |
0.036 |
| Honey 蜂蜜 Sweeteners |
0.036 |
| Cheddar cheese 切达奶酪 Dairy |
0.033 |
| Apple 苹果 Fruit |
0.027 |
| Yogurt 酸奶 Dairy |
0.003 |
| Coffee 咖啡 Drinks |
0.002 |
| Milk 牛奶 Dairy |
0.001 |
Read the full low-copper diet guide →
USDA FoodData Central (SR Legacy / Foundation), copper per 100 g edible portion. Category reflects the classic low-copper-diet guidance for Wilson disease. Numbers are factual USDA values; they are not a personal dietary prescription. Always follow the plan agreed with your own clinician or dietitian.