You already know this. Protein is needed to build up your muscles after exercise, so they get a bit bigger and stronger for next time.

But protein also has other functions in the body.

Enzymes can be proteins and they can help as catalysts in various reactions in the body, proteins can also be hormones, such as insulin, which helps the body keep blood sugar at the right level, some proteins are needed for the immune system and others to transport fat, minerals and oxygen around the body. In short, protein has many important functions in the body.

But still , the right amount of protein is best, greater quantity is not better. If we eat too much protein, it will also be stored as fat in the body.