What are the functions of proteins

6 important functions of proteins in the body

Proteins are important building materials for the cells in our body. Most of our body is made up of water and proteins.

Our body needs proteins and amino acids to be able to form special protein building blocks. Proteins are required for many vital functions and processes and should be constantly consumed through food. The easiest way to do this is through high-protein foods and dishes.

Here are some important functions of proteins in the body.

Repair and regeneration

Pregnant women need a higher protein intake for the healthy development of their child. Proteins are the building material of the body and make it easier for new cells to be built.

They are necessary for the maintenance of body tissue including development and repair.

Hair, skin, eyes, muscles and organs are made from proteins. Children need more protein per body weight than adults because they grow and new body tissue is constantly being created.

Hormone production

Proteins are involved in the creation of important hormones and are required for the control of various body functions and organs.

For example, insulin is a small protein hormone that regulates blood sugar by interacting with organs like the pancreas and liver.

Secretin is another example of a protein hormone. This hormone aids the digestive process by stimulating the pancreas and intestines to create the necessary digestive juices.


If more proteins are consumed than are needed for the maintenance of body tissue and other body functions, the excess is used as a source of energy.

If sufficient other energy sources such as carbohydrates are available, the excess protein is excreted or temporarily stored as a later energy source in the form of fat cells.


Protein enzymes are required for the production of DNA. Enzymes are proteins that can catalyze a chemical reaction and are required for various metabolic processes.

Most of the necessary chemical reactions in the body could only be inefficient without enzymes.

Enzymes are needed to digest large molecules of protein, carbohydrates, and fat.

Transport and storage of molecules

Certain transport and storage proteins are required for the transport and storage of molecules. Hemoglobin, for example, is a protein that carries oxygen around the body. Ferritin is a protein that combines with iron in the liver and stores it there.


Antibodies are made by proteins and help prevent disease and infection. They help destroy antigens such as bacteria and viruses.

Antibodies work with other immune system cells to maintain important protective functions. For example, they identify and surround antigens until they can be destroyed by white blood cells.

Proteins are therefore not only necessary for the maintenance of valuable muscles, but also take on a multitude of important tasks.

Health is delicious

Incorporating healthy foods into your diet is often easier than you think. Combinations of healthy and nutritious foods invigorate everyday life, ensure more energy and joy while eating. Because food should not only be healthy, but taste, give strength and make you happy.

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