Answer:
Carbohydrates in the body are used to provide energy to the body. It is also called glucose. For example vegetables, whole fruit, legumes, potatoes and whole grains.
The role of fat is also to provide energy after being broken in the form of fatty acids. For example butter, oil, nuts, meat, fish, and some dairy products.
Protein on the other hand primarily helps in the making of muscles, hormones and other proteins, secondly it also provides energy to the body. For example Lean meat, poultry, fish, eggs, cheese and milk.