The Four Nutrients That Combine as a Powerhouse for the Immune System
Good nutritional support is important to support a healthy immune system. There is a strong relationship between poor nutritional status, ill-health or low immunity.2 An effective immune system that functions properly, largely depends on a nutritious diet and a healthy lifestyle.
Among the myriad nutrients that aid bodily functions including immunity, four stand out as an immune-boosting powerhouse when combined: Vitamin C, Vitamin D3, Selenium, and Zinc. Together, these nutrients strengthen the body’s defences to keep you strong, healthy and active.2 Let’s delve into how each of these works to support your immune defences.
① Vitamin C: The Antioxidant Warrior3
Vitamin C is one of the most well-known vitamins for immunity, and for good reason. It plays a vital role in actively boosting immune function and supports the production of white blood cells, the frontline soldiers of your immune system.1
Benefits of Vitamin C for Immune Support
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Protects cells against free radicals with its strong antioxidant properties.
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Strengthens the skin barrier, your body’s first line of defence against pathogens.
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Improves iron absorption, ensuring oxygen is efficiently transported throughout the body.
Health tips: Many people turn to Vitamin C supplements during colds or flu season because they help the body recover faster and maintain resilience.1 Others use vitamin C for to support healthy skin, muscle, bones, cartilage, & other tissues and some to promote the absorption of iron from the diet or iron supplements helping to keep you healthy.1
② Vitamin D: The Immune System Balancer
Commonly known as the “sunshine vitamin,” because the body produces vitamin D naturally when it’s directly exposed to sunlight. Vitamin D helps normalise or adjust immune response so it doesn’t overreact, which can lead to harmful inflammation.4,5
Benefits of Vitamin D3 for Immunity
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Supports the germ-fighting ability of white blood cells.
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May reduce the risk of respiratory infections. 4
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Helps the body absorb calcium, keeping bones and muscles healthy. 5
Health tips: Sunlight remains the most natural and effective source of Vitamin D. For many people, the best way to get enough vitamin D is taking a supplement because it is hard to eat enough through food.5
③ Zinc: The Gatekeeper of Immunity
Although required only in small amounts, Zinc is one of the most powerful minerals for immune support. It contributes to many enzymatic reactions and serves as a structural component for proteins that keep the immune system functioning properly.6
Benefits of Zinc for a Strong Immune System6
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Helps develop and activate immune cells to fight infections.
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Supports wound healing and skin repair.
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Provides antioxidant protection, reducing damage from oxidative stress.
Health tips: Taking Zinc supplements can be especially useful when your body needs extra nutritional support, such as during growth spurt, illness or recovery. Taking a zinc supplement with a decent sized meal, especially one rich in protein, can help ease stomach pain, digestive upsets, nausea, vomiting, & diarrhoea, if taken on an empty stomach.6
④ Selenium: The unsung hero of immune defence
Selenium is an essential trace mineral that acts as a powerful antioxidant that helps protects cells from premature aging, oxidative stress, free-radical, damage.7,8
Benefits of Selenium for Immune Support
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Boosts the activity of white blood cells.
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Protects against oxidative stress and reduces inflammation.7
Health tips: The body does not store selenium, so you need to eat enough or supplement every day to meet your daily requirements. Selenium tends to work synergistically with antioxidants like vitamins A-C-E and zinc, so taking it with a meal or supplement that is rich in these nutrients can further enhance its benefits.
The Takeaway
The immune system is a daily armour, so why not give it the extra fighting chance to survive the countless immune threats it faces every day of common infections, germs, diet, exercise, old-age, stress, excess weight, sun, pollution, toxins, and ultraviolet radiation?2
By adding Vitamin C, Vitamin D, Zinc, and Selenium into your daily supplements’ routine, you can create a nutritional fortress that not only supports your immune health but also enhances your overall well-being. Nativa Complex® Multi-Defence.
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“Supplements are meant to complement, but not replace, a healthy, varied, balanced diet.
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This content is provided for information purposes only and is not intended to diagnose, cure, treat, prevent any disease nor a substitute for professional medical advice & treatment.
References:
1. Joseph Nordqvist, Alan Carter (10 November 2024). Vitamin C: Why is it important? Medical News Today Accessed 31 July 2025 Available at https://www.medicalnewstoday.com/articles/219352
2. Maggini S, Maldonado P, Cardim P, Fernandez Newball C, Sota Latino ER (2017) Vitamins C, D, Selenium and Zinc: Synergistic Roles in Immune Function and Infections. Vitam Miner 6: 16 Available from: DOI: 10.4172/2376-1318.1000167
3. Raman R. 7 Health Benefits of Vitamin C. [Updated 2020 Feb 19; Cited 2025 Jun 6]. Healthline. Available from: https://www.healthline.com/nutrition/vitamin-c-benefits
4. Kubala J. The 15 Best Supplements to Boost Your Immune System Right Now. [Updated 2023 Feb 1; Cited 2025 Jun 6]. Healthline. Available from: https://www.healthline.com/nutrition/immune-boosting-supplements
5. Vitamin D. [Reviewed 2023 Mar; Cited 2025 June 6]. Harvard T.H. Chan School of Public Health. The Nutrition Source. Available from: https://nutritionsource.hsph.harvard.edu/vitamin-d/
6. The Importance of Zinc for Immune Function. [Updated 2024 Nov 28; Cited 2025 Jun 6]. Continental Hospitals. Available from: https://continentalhospitals.com/blog/the-importance-of-zinc-for-immune-function/
7. Kubala J. 7 Science-Based Health Benefits of Selenium. [Updated 2023 Feb 6; Cited 2025 Jun 6]. Healthline. Available from: https://www.healthline.com/nutrition/selenium-benefits
8. Chisenga CC, Kelly P. The Role of Selenium in Human Immunity. Medical Journal of Zambia, Vol. 41, No. 4: 181-185 (2014)
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