Proteins are essential molecules found in every living organism. They are made up of smaller units called amino acids, which link together in various sequences to form different proteins. These proteins play crucial roles in the body, including building and repairing tissues, supporting immune function, and facilitating chemical reactions as enzymes. In our diet, proteins can be obtained from both animal sources, like meat, fish, and dairy, and plant sources, such as beans, nuts, and grains. Consuming a variety of protein-rich foods helps ensure that we get all the necessary amino acids our bodies need to function properly and stay healthy.