The document discusses the 5 food groups which are the building blocks of a healthy diet. The 5 food groups are: 1) vegetables and beans, 2) fruits, 3) grain foods mostly whole grains, 4) lean meats, poultry, fish, eggs, nuts and seeds, and 5) milk, yogurt and cheese. Each food group provides different important nutrients and people should aim to get servings from each group daily for a balanced diet and health.