Dietary components include fats, which are a type of macronutrient that provide energy and help the body absorb vitamins. Fats are found in many foods, such as nuts, seeds, avocados, and dairy products. They are also found in some processed foods, such as margarine and shortening. Fats are an important part of a healthy diet, as they provide essential fatty acids and help the body absorb fat-soluble vitamins.