Foods that contain more copper are as follows: 1. shellfish, such as oysters, scallops, abalone, which often contain more copper. 2. animal offal, especially animal liver and kidney contain more copper, such as pig liver, chicken liver, sheep liver, pig kidney, cow kidney, sheep kidney. 3. cereal germ parts, such as corn germ, wheat germ. 4. legumes, such as soybeans, mung beans, red beans, black beans. 5. Food, such as soybeans, mung beans, red beans, black beans. 5, nuts, such as cashews, pistachios, hazelnuts.