How much copper is in oysters?

Copper content of oysters and how it fits a low-copper diet for Wilson disease（生蚝/牡蛎）.

2.68 mgcopper per 100 g

Avoid

High copper — kept off a low-copper diet · food group: Shellfish

Shellfish are among the highest-copper foods (some oyster types reach ~5.7 mg/100 g). Classically avoided.

Can I eat oysters 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 2.68 mg per 100 g, oysters 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

Lobster
1.55 mg · Avoid Crab
0.814 mg · Avoid Clams
0.688 mg · Avoid Crayfish
0.53 mg · Avoid

See the full food copper list → · Search any of 13,565 foods →

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.