More and more research points to the many immunity-boosting benefits of diets that are high in fruits and vegetables. Citrus fruits such as grapefruits, lemons and oranges are filled with Vitamin C, a necessary vitamin that helps to ward off colds and infections. Vegetables such as red bell peppers contain Vitamin C and beta carotene, which help to boost immunity, maintain skin health and improve eye function. Garlic lowers blood pressure and helps to fight off infections. Ginger can be used to fight colds once they develop and prevent colds from developing in the first place.

To learn more about the 10 powerful foods that help to boost immune system function, review the sections below:

  • Citrus fruits
  • Red bell peppers
  • Garlic and ginger
  • Broccoli
  • Spinach
  • Probiotic-rich foods
  • Turmeric
  • Almonds and sunflower seeds
  • Green tea

1) Citrus Fruits

Citrus fruits are full of Vitamin C, which is why many patients rely on them after they’ve come down with a cold. However, the human body does not store Vitamin C for long periods of time, so it is necessary to consume Vitamin C daily. Citrus fruits that should be consumed on a regular basis for optimal health include oranges, tangerines, clementines, lemons, oranges and grapefruit.

2) Red Bell Peppers

Citrus fruits are not the only foods packed full of Vitamin C. Red bell peppers contain Vitamin C and beta carotene, making red bell peppers an excellent vegetable to consume on a regular basis for healthy, youthful skin, eyes and immune system function.

3) Garlic and Ginger

Garlic and ginger are great-tasting additions to nearly any recipe, but they also provide immune-boosting benefits that patients should take advantage of. Garlic and ginger both contain Vitamin C, but garlic is also effective for lowering blood pressure.

4) Broccoli

Broccoli is excellent for the human body, containing vitamins such as C, A and E. Plus, broccoli is full of powerful antioxidants that help to keep the human body as healthy as possible.

5) Spinach

Like red bell pepper, spinach contains Vitamin C, antioxidants and beta carotene. Spinach provides the best health benefits when lightly cooked.

6) Probiotic-Rich Foods

Probiotic-rich foods such as non-dairy yogurt, kimchi and sauerkraut are all beneficial for boosting the immune system. Additionally, yogurt is a great source of Vitamin D, which also helps to boost the immune system and fight off infections.

7) Turmeric

More and more medical practitioners are addressing the anti-inflammatory health benefits of using turmeric. Not only is turmeric great for the immune system function, but it may also help to fight common age-related health concerns such as rheumatoid arthritis and osteoarthritis. Turmeric can be added to nearly any recipe, smoothie, tea or can be taken in capsule form.

8 & 9) Almonds and Sunflower Seeds

Almonds and sunflower seeds are both delicious snacks, but they are also beneficial for preventing colds or fighting them off once they develop. Plus, almonds contain fat-soluble Vitamin E and sunflower seeds contain magnesium, Vitamin B-6, Vitamin E and other powerful nutrients such as phosphorus.

10) Green Tea

Green tea is loaded with powerful antioxidants and germ-fighting amino acids. While black tea contains similar antioxidants as green tea, the fermentation process used to make black tea destroys some of the antioxidants. Green tea, on the other hand, is steamed rather than fermented, so the antioxidants are preserved throughout the entire process.