Well, there are diet rich foods, which strengthen your immune system and help your body fight common illnesses such as infections, colds, flu, and fever.

Vitamin C is one of the biggest immune system boosters of all. In fact, a lack of vitamin C can even make you more prone to getting sick. Foods rich in vitamin C include oranges, grapefruits, tangerines, strawberries, bell peppers, spinach, kale and broccoli.

Daily intake of vitamin C is essential for good health because your body doesn’t produce or store it. The good news is that vitamin C is in so many foods.

Vitamin B6 is vital to supporting biochemical reactions in the immune system. Vitamin B6-rich foods include chicken and cold-water fish such as salmon and tuna. Vitamin B6 also is found in green vegetables and in chickpeas, which is the main ingredient in hummus.

Vitamin E is a powerful antioxidant that helps the body fight off infection. Foods rich in vitamin E include nuts, seeds, and spinach.