Proteins are the tiny bricks that make up our bodies. They are the workhorses of our bodies, carrying out a wide range of important tasks. For example, proteins help to build and repair tissues, they catalyze biochemical reactions, they transport molecules throughout our bodies, and they help to identify and neutralize harmful pathogens. Without proteins, we would not be able to live. Ever wondered how your muscles grow after a workout? Proteins are the key players in this process. They help to break down damaged muscle fibers and then build them back up stronger than before. This is why it is important to eat a protein-rich diet if you want to build muscle.