The Food Pyramid outlines 6 food groups and recommends eating more servings from the groups at the bottom and fewer from those at the top. Grains form the base and should provide at least half of daily calories. Fruits and vegetables are next and provide vitamins and fiber while being low in calories. Dairy, meat and alternatives make up the third level and supply protein and other nutrients. Fats, oils and sweets sit at the top and should be consumed sparingly due to their high calorie, low nutrient content.