High-protein foods are those that contain a significant amount of protein, an essential nutrient that helps build and repair tissues in the body. Common sources include meat, fish, eggs, dairy products, and legumes. These foods are important for maintaining muscle mass, supporting immune function, and promoting overall health. In addition to animal-based options, there are many plant-based high-protein foods, such as quinoa, tofu, and chickpeas. Including a variety of these foods in your diet can help meet your protein needs, especially for those following vegetarian or vegan diets.