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How much copper is in dark chocolate?

Copper content of dark chocolate and how it fits a low-copper diet for Wilson disease（黑巧克力）.

1.25 mgcopper per 100 g

Avoid

High copper — kept off a low-copper diet · food group: Chocolate & cocoa

Cocoa is high in copper; the darker the chocolate, the higher (baking chocolate ~3.2 mg/100 g). Usually avoided.

Can I eat dark chocolate with Wilson disease?

People with Wilson disease follow a low-copper diet, especially in the first year of treatment, because the body cannot clear excess copper normally. At 1.25 mg per 100 g, dark chocolate is a high-copper food that is normally kept off the plate. How strict your diet needs to be depends on your treatment stage and copper levels, so use this as a guide and confirm with your own clinician or dietitian.

Lower-copper choices in the same group

Cocoa powder
3.79 mg · Avoid Milk chocolate
0.491 mg · Limit Tuna
0.071 mg · Generally OK Cod
0.036 mg · Generally OK

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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.