Proteins are very essential macromolecules as they have a range of many important functions like:

• Required for building and repair of body tissues (including muscle)

• Enzymes, hormones, and many immune molecules are proteins

• Essential body processes such as water balancing, nutrient transport, and muscle contractions require protein to function.

• Protein is a source of energy.

• Protein helps keep skin, hair, and nails healthy.

• Protein, like most other essential nutrients, is absolutely crucial for overall good health.

Hence a proper diet with lots of proteins is always advisable. Good sources of proteins are fish, egg, meat, pulses etc.