Top 10 Foods To Help Boost Your Immune System

You can find up to 80% of your immune system in your digestive tract (as gut-associated lymphoid tissue or GALT). Essentially, the number one priority of your immune system is DEFENSE. In other words, the immune system is a complex and dynamic defense system that’s responsible for keeping you well. It is always working to protect your body from challenges and “foreign invaders,” which, believe it or not, enter your body all the time.

It’s hard to believe that every minute of every day, there is a battle raging inside of your body between your immunity defense—the GOOD GUYS—and the BAD GUYS, including viruses, allergens, toxic substances, and other foreign invaders (like pathogenic bacteria, parasites, and fungi).

In brief, the stronger and more supported your immune system, the better able you are to remain healthy and happy.

Here are my top 10 food groups that boost your immune system:

1. Dark Leafy Greens

Dark leafy greens provide calcium, fiber, folate, iron, and vitamins C and K. All of these nutrients play a critical role in supporting the immune system by encouraging immune cells in the gut to function properly.

2. Seafood (e.g. sardines, oysters, scallops and shrimp)

Fatty fish (such as salmon and tuna) contains ample amounts of healthy omega-3 fatty acids, which may enhance immune function. Omega-3s may help the body in its fight against inflammation and could increase your body’s ability to ward off illnesses.

3. Bell Peppers, Tomatoes, Citrus Fruits and Sprouts

The health of your immune system relies on many factors. Yet vitamin C is clearly one of the most important. The Recommended Dietary Allowance (RDA) of vitamin C for men is 90 milligrams (mg) per day. For women, it’s 75 mg. Vitamin C is known to help give your immune system a boost. It encourages the immune system to produce white blood cells, which are necessary to fight infections.  Vitamin C can be found in many foods. Some of the highest concentrations, however, are found in fruits (particularly citrus) as well as bell peppers, green vegetables like sprouts, kale, and tomatoes.

4. Fermented Foods

The bacteria that reside in the gut have a significant impact on your immune system. Because of the high amount of probiotics, fermented foods may support your immune system to potentially reduce the risk of infections. Consider miso and kefir for example.

5. Pumpkin seeds, mushroom, pecans.

Being deficient in zinc can increase your risk of infection. Zinc helps develop white blood cells, the cells we really need to fight off foreign bacteria and viruses.

6. Mushrooms

Mushrooms are a type of fungi that may support immunity, boost health, and even promote health span. In Asian holistic medicine, mushrooms have been a star of the show for centuries. More recently, researchers are finding the ancient health practitioners were onto something. Mushrooms appear to be powerful when it comes to fighting disease and supporting healthy cells. Of course we are referring to reishi, chaga, shitake, cordyceps, maitake and others.

7. Broccoli and Cruciferous Veggies

Cruciferous veggies are included on this list due to a nutrient called sulforaphane. Research has found that diets high in broccoli, Brussel sprouts, cabbage, and other cruciferous vegetables may activate certain antioxidant genes and enzymes in immune cells, supporting the body’s ability to fight free radicals and eliminate toxins.

8. Nuts and Seeds

Nuts and seeds provide iron, vitamin B, and zinc, which all support the immune system. Zinc has been associated with the production of white blood cells, which are key to an effective immune system. Nuts and seeds are also rich in several health-promoting vitamins and minerals.

9. Oats

Oats are the top source of the fiber known as “beta-glucan,” which may help boost infection-fighting blood cells. Oats (choose gluten-free) also provide the minerals selenium and zinc, which may help ward off illness.

10. Allium Vegetables (e.g., leeks, onions and garlic)

Finally, the allium vegetables—like garlic, onions, and leeks—also support a healthy immune system. Garlic’s health-enhancing properties have been proclaimed for centuries. Recent studies have validated the centuries-old claims, showing that allicin, a compound found in garlic and onions, may have strong anti-viral, anti-bacterial, and anti-fungal properties.

To your good health,

Colombe