These are the chief energy sources for the body. Together with protein, they  provide supporting structure for the cells. These nutrients also contribute to mucus production  and DNA formation.

These are mainly  for various bodily functions including structural  support, cell repair, muscle movement, chemical signaling, enzyme-driven reactions, and immune defense. They are made up of 20 different  amino acids, which  serve the building blocks.

A nutrient that carries other nutrients around the body and also removes waste from the body.

There  are also energy  nutrients. They provide twice as much energy per gram compared with carbohydrates. These nutrients serve as energy stores.

Substances needed in small amounts to help regulate body functions.

These are inorganic compounds that our bodies need to develop and function primarily.

These are indigestible  material called cellulose found in fruits, vegetables, bran, cereals and whole wheat bread. These do not provide us with energy or nutrient support catalytic function.

The starches and sugars found in food

Nutrients that our body needs to grow. They are also needed to repair damaged parts of our body. That is why they are called body-building nutrients.

Lipids that function as storage form of energy

Lipids that function as structural components of bio-membranes

Lipids that function as metabolic regulators