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How much copper is in dried shiitake mushrooms?
Copper content of dried shiitake mushrooms and how it fits a low-copper diet for Wilson disease（干香菇）.
Dried mushrooms are extremely copper-dense — far higher than fresh; avoid.
Can I eat dried shiitake mushrooms 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 5.16 mg per 100 g, dried shiitake mushrooms 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
0.36 mg · Limit Potato
0.11 mg · Generally OK Sweet potato
0.151 mg · Generally OK Spinach
0.13 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.