Meat has a high amount of zinc content, which can boost immunity. Due to its antioxidant properties, zinc is responsible for creating antibodies to fight free radicals that may put us at a higher risk for chronic diseases. Protein from meat can help in the production of these antibodies to protect the body from infections. The omega-3 fatty acids from seafood are good for boosting immunity as well. Another mineral found in seafood is selenium, which can also be known for enhancing the immune system.