The next step is made up of dairy products. Dairy products include milk, cheese, sour cream, yogurt and even ice cream. They're important for getting the calcium your body needs for strong bones, and they're a good source of protein.
Speaking of protein, the final step is the protein group. Proteins are found in abundance in foods of animal origin such as lean meat, poultry, eggs, dairy, and fish. Plant sources including legumes, nuts, grains and seeds provide plenty of vegetarian protein.