As a healthcare professional, you know that a well-functioning immune system is essential for overall health and wellness. While no single food can prevent illness, a nutrient-rich diet can help support the body’s natural defenses.
This guide to foods and supplements that support the immune system can help you prepare for conversations with your patients about maintaining immune health—and arm you with practical, evidence-based guidance to help them live their healthiest lives.
The Importance of Nutrition in Immune Function
The immune system is a complex network of cells, tissues, and organs that work together to defend the body against pathogens. Nutrition plays a critical role in maintaining this system, influencing everything from the integrity of physical barriers (like skin and mucosa) to the production and activity of immune cells.[1]
Key nutrients involved in immune function include:
● Vitamin A – Supports immune function.* Also supports eye health and vision.*
● Vitamin C – Supports the immune system.* High doses also support cardiovascular health and blood vessel health.*
● Vitamin D – Supports the immune system.* Also supports healthy bones and teeth.*
● Zinc – Supports the immune system.* Also supports bone and skin health.*
These important nutrients can be obtained from certain foods and supplements, detailed below.
Foods That Support the Immune System
As you discuss the importance of immune health with your patients, you can encourage them to eat foods from the following categories:
Fruits and Vegetables
● Citrus fruits, berries, bell peppers, spinach, and broccoli are rich in vitamins C and A.
● Aim for a colorful plate to ensure a broad spectrum of antioxidants and phytonutrients.
Whole Grains
● Brown rice, oats, and quinoa provide B vitamins and fiber, which support gut health—a key component of immune function.
Healthy Fats
● Nuts, seeds, avocados, and fatty fish (like salmon) offer omega-3 fatty acids and vitamin E, which help support the immune system.
Fermented Foods
● Yogurt, kefir, kimchi, and sauerkraut contain probiotics that support gut microbiota and immune health.
Lean Proteins
● Poultry, legumes, tofu, and eggs supply amino acids necessary for the production of immune cells and antibodies.
Supplements That Support Immune Health*
As much as you’d like patients to eat a perfectly balanced diet, the realities of modern life can hinder that goal. You may consider recommending professional-grade supplements to further support patient health.
● BioPotent C is a powerful blend of five types of vitamin C, plus niacin, calcium, and a lemon flavinoids complex. The vitamin C in Nutra Biogenesis BioPotent C provides 1,333% DV, is designed for minimal digestive upset, and supports healthy immune function.*
● Monolaurin is a monoglyceride derived from lauric acid. It is sourced from raw coconut and is used to support overall well-being.* Nutra Biogenesis Monolaurin delivers 1,000 mg monolaurin from coconut, and is vegan and Non-GMO.
Patient Education Tips
Consider these guidelines when discussing immune-supportive foods with patients:
● Keep it simple: Focus on whole foods and variety rather than specific “superfoods.”
● Be realistic: Encourage small, sustainable changes rather than overhauls.
● Tailor advice: Consider age, health status, current medications, and dietary restrictions.
● Use visuals: Share handouts or plate diagrams to reinforce key messages.
Key Takeaways
Using nutrition to support the immune system is a practical and empowering way to help patients take charge of their health.
Educating patients about the connection between everyday food choices and immune health can help them feel more engaged in their long-term wellness.
When healthcare providers recommend a balanced diet rich in immune-supportive foods, and incorporate professional-grade supplements when needed, they can provide patients with tools to help them stay strong and resilient year-round.
1“Nutrition and Immunity” Harvard T.H. Chan School of Public Health, nutritionsource.hsph.harvard.edu/nutrition-and-immunity.