What are the foods that are high in protein?

High-protein foods mainly include the following categories: 1. **Dairy products**: Such as cow's milk, goat's milk, yogurt, and cheese. These dairy products are not only rich in protein but also serve as important sources of calcium. 2. **Eggs**: Eggs such as chicken eggs, duck eggs, goose eggs, and quail eggs are rich in protein. Particularly, the protein in egg whites is easily absorbed by the human body. 3. **Meat**: Red meats such as pork, beef, and lamb, as well as seafood such as fish and shrimp. These meats are not only high in protein but also rich in other nutrients. 4. **Legumes and their products**: Legumes such as soybeans, black beans, and red beans, as well as soy products like tofu and soy milk, are important sources of protein for vegetarians. 5. **Nuts**: Such as walnuts, almonds, and pistachios. These nuts are also rich in protein, and moderate consumption helps meet the body's nutritional needs. All of the above foods are rich in protein and can be selected based on personal preferences and nutritional requirements.