Carbohydrates- main energy source for the brain, the body would not be able to function properly without them.
Protein- major structural component of cells and is responsible for building and repair of body tissues.
Fat- this increases the absorption of fat soluble vitamins like A,D,E, and K
Vitamins- Vitamins such as C are necessary for synthesis of collagen, which helps provide structure to blood vessels.
Minerals- Sodium helps maintain fluid volume outside of the cells and helps them to preform normally.
Water- helps maintain homeostasis in the body and transports nutrients to cells.
Hope this helps:)