Proteins are essential building blocks for our body, and they play a vital role in maintaining a healthy immune system. If you don't consume enough protein, your immune system may become weakened, making you more susceptible to infections and illnesses. Proteins are responsible for producing antibodies that fight against harmful viruses and bacteria. They also help in the production of white blood cells, which are crucial for a strong immune system. Therefore, it's essential to ensure that you consume enough protein-rich foods to maintain a healthy immune system and protect yourself from diseases.