17 Nutrient-Dense Immune-Boosting Foods


In today’s fast-paced world, taking care of your health has never been more important. A strong immune system is essential for staying healthy, especially during cold and flu season.

While many supplements and medications claim to boost immunity, one of the most effective ways to support immune health is through food!

Did you know 70% of your immune system is located in your digestive tract? That’s why focusing on gut health is essential! Nourish your body with immune-boosting foods so that your body can keep you healthy.

Maintaining a strong immune system requires a multifaceted approach and a healthy lifestyle that includes eating a variety of nutrient-dense foods, quality sleep, regular exercise, time spent outdoors, and adequate sunlight exposure. Other activities such as regular sauna, red light therapy, and cold therapy also help support immunity.

Bottom Line: An overall healthy lifestyle is the best way to support your immunity.

1. Citrus Fruits

Citrus fruits like oranges, lemons, grapefruits, and limes are loaded with vitamin C, a powerhouse nutrient known for its immune-boosting properties. Vitamin C helps to increase the production of white blood cells, which are essential for fighting infections.

Start your day with a warm cup of lemon water, eat a fresh orange for snack, or make your own immunity bombs at home.

2. Leafy Greens

Leafy greens such as spinach, kale, and Swiss chard are packed with vitamins A, C, and K and antioxidants. These nutrients help your body fend off infections and maintain overall health.

Incorporate leafy greens into your diet by adding them to smoothies, salads, or stir-fries. 

3. Garlic

Garlic is not only a flavorful addition to your meals, but it also contains compounds that boost your immune system. Allicin, a compound found in garlic, has been shown to enhance the function of immune cells and reduce the severity of colds.

You can add minced garlic to your meals, spread garlic paste on whole-grain toast, or make homemade fire cider or fermented garlic honey.

4. Ginger

Ginger is renowned for its anti-inflammatory properties and is an excellent addition to your diet during cold and flu season. It can help alleviate sore throats and reduce nausea.

Add fresh ginger to smoothies, brew it in tea, or use the dry spice in your cooking. Make your own immunity bombs or this delicious immune-boosting chicken soup recipe.

5. Yogurt

Yogurt is a great source of probiotics, which are beneficial bacteria that promote gut health. A healthy gut is crucial for a strong immune system, as about 70% of your immune system is located in your digestive tract.

For the most benefit, choose plain (or organic) yogurt to avoid added sugars, artificial flavourings and colours. Be sure to opt for brands that contain live, active bacterial cultures that benefit your gut health!

6. Nuts And Seeds

Nuts and seeds, such as almonds, walnuts, and pumpkin seeds, are rich in vitamin E, zinc, and healthy fats. Vitamin E is a powerful antioxidant that helps regulate and maintain immune function.

Pumpkin seeds, especially, are a great source of zinc, which supports immune function by promoting the development and activity of immune cells, enhancing the body’s defense against infections, and reducing inflammation and oxidative stress.

Snack on a handful of mixed nuts, sprinkle seeds on your salads or blend them into smoothies. You can also make homemade energy bars with oats, nuts, and dried fruit for an easy, nutritious snack.

Be sure to opt for raw or dry-roasted nuts and seeds instead of salted or flavoured options.

7. Berries

Berries like blueberries, strawberries, and raspberries are packed with antioxidants, particularly vitamin C and flavonoids. These compounds help protect your body from oxidative stress and support immune function.

Add berries to your breakfast cereal, yogurt, or smoothies. 

8. Turmeric

Turmeric contains curcumin, a compound with powerful anti-inflammatory and antioxidant effects. This spice can help boost your immune response and is often used in traditional medicine.

Incorporate turmeric into your cooking by adding it to soups, curries, smoothies or sprinkled over roasted vegetables. You can also make a soothing turmeric latte by mixing turmeric with milk, honey, and a pinch of black pepper.

Add berries to your breakfast cereal, yogurt, or smoothies. 

9. Onion

Onions are immune-boosting thanks to their rich content of antioxidants like quercetin, sulfur compounds, and vitamin C, which help fight inflammation and oxidative stress.

They also support gut health with prebiotics, promote respiratory health, and have antibacterial and antiviral properties, making them a great addition to your diet for overall immune support.

10. Mushrooms

Mushrooms such as Shiitake, maitake, and reishi are rich in beta-glucans and antioxidants, which can enhance the immune system’s response.

Add them to your meals, or eat them in supplement form.

11. Sweet Potatoes

Sweet potatoes are high in beta-carotene, which the body converts into vitamin A, essential for maintaining healthy immune function.

Make a warming sweet potato soup or roast them in the oven! Sweet potatoes are one of the best carbohydrate sources full of nutritional benefits.

12. Fermented Foods

Fermented foods are one of the best options for supporting your immune system through your gut.

They are rich in probiotics, which help promote gut health and are essential for a robust immune system. 

Foods like sauerkraut, kimchi, and miso make delicious additions to meals and are jam-packed with good bacteria to help support your gut health and boost your immunity.

13. Green Tea

Green tea contains flavonoids and catechins, antioxidants that may enhance immune function and reduce inflammation.

14. Broccoli

Broccoli is a very nutrient-dense vegetable high in vitamins A, C, and K, fiber, and antioxidants, which all help to support overall health and immunity.

16. Eggs

Eggs are one of the best immune-boosting foods packed with high-quality protein, vitamins A, D, and B12, along with essential minerals like selenium and zinc.

With antioxidants, healthy fats, and key nutrients like choline, eggs help strengthen your immune system and keep you feeling strong and healthy!

Egg quality is important to ensure maximum benefits—opt for organic, free-range eggs or find a local farm for fresh, nutrient-dense eggs.

17. Honey

Raw honey has antimicrobial properties, can soothe sore throats, and help boost your immunity. Make sure to buy raw honey that is natural and free from processed sugars and preservatives. The best place to find good honey is to visit your local farms, farmers markets and beekeepers!

I like to take a teaspoon of honey every couple of days. You can also make your own homemade honey lemon cough syrup and add honey to sweeten your tea.

Immune-Boosting Herbs And Spices

In addition to these immune-boosting foods, many herbs and spices can help strengthen and support your immune system. 

Incorporate them into your routine by drinking herbal tea, adding spices to your meals, or taking tinctures.

  • Echinacea: Often used to prevent colds, it may enhance the immune response and reduce inflammation.
  • Elderberry: Known for its antiviral properties, elderberry can help reduce the duration and severity of colds and flu. Make your own elderberry syrup with this simple recipe!
  • Oregano: Contains compounds with antimicrobial properties that may help fend off infections.
  • Thyme: Rich in antioxidants and has antimicrobial properties, supporting overall immune health.
  • Cinnamon: Contains antioxidants and has anti-inflammatory properties, which may support immune function.
  • Ginseng: An adaptogen that can enhance the immune response and improve overall vitality.
  • Ashwagandha: Another adaptogen, ashwagandha helps manage stress and may support immune function.
  • Nettle: High in vitamins A and C, it supports overall immune health and has anti-inflammatory properties.
  • Holy Basil (Tulsi): Known for its adaptogenic properties, it helps the body cope with stress and may enhance immune function.

Takeaway

Eating a variety of immune-boosting foods, herbs, and spices can help you stay healthy and resilient. Nutrition is just a piece of the puzzle when it comes to maintaining a strong immune system! 

A healthy lifestyle that includes balanced nutrition, regular exercise, and adequate sleep is crucial to supporting a healthy immune system. It all works together!