Research shows that key vitamins and minerals help maintain balanced and effective immune defenses, allowing you to feel confident in your resilience.

Your immune system works like a highly coordinated team. Each cell plays its part, but without the right nutrients, performance falls short. Vitamins and minerals provide the building blocks that immune cells need to activate, signal, and adapt to new challenges.

Maintaining optimal nutrient intake means more than just short-term defense. It helps you stay resilient, recover faster, and protect long-term health—so you can keep doing the things you love.

Key nutrients for immune health

Vitamin D

Vitamin D is often called the “sunshine vitamin,” but its role goes far beyond mood. It helps regulate immune balance, keeping the system both responsive and controlled. This nutrient supports your first-line defenses and your adaptive immunity, which learns to handle new threats.

The challenge: Nearly half the world’s population has suboptimal vitamin D levels (1). Food sources are limited, and sunlight is inconsistent, especially in winter or northern regions. Supplementation offers a reliable way to maintain optimal levels all year, helping your immune system stay strong.

Vitamin C

Vitamin C is one of the best-known nutrients for immune support—and for good reason. It powers up your immune cells to detect and destroy invaders, while helping tissues repair more quickly.

As a potent antioxidant, vitamin C also protects your cells from oxidative stress caused by daily factors like aging, stress, and environmental exposure. Since our bodies cannot make it naturally, steady intake through food or supplements is essential. Vitamin C’s protective effects on the immune system are relevant in studies of respiratory infections such as the common cold. Studies show it can shorten the duration of common colds when we are sick and improve overall resilience, reducing the likelihood of becoming sick (2). Vitamin C should be a staple in your immune defense cabinet. 

Omega-3 fatty acids

Omega-3 fatty acids—EPA and DHA—are well known for heart and brain health, but their benefits extend directly to your immune system. They help control inflammation, the body’s natural defense mechanism (3). Short-term inflammation protects you, but when it lingers, it can undermine well-being.

Omega-3s restore balance by moderating these pathways, keeping the immune response efficient without becoming overactive. For those who eat little seafood, supplementation provides a dependable source of these essential fats.

Zinc

Zinc is a small mineral with a big impact. It supports the development and communication of immune cells and helps regulate inflammation. Without enough zinc, both fast-acting defenses and longer-term antibody responses are weakened.

Supplementation can be especially beneficial in groups at higher risk of deficiency, such as children and older adults. Studies show zinc intake improves infection outcomes and helps maintain immune balance over time.

Source: Vitamin D levels [https://doi.org/10.1093/pubmed/fdaf080] (1) Vitamin C and common cold [https://doi.org/10.3390/nu12041181] (2) Omega-3 and immunity [https://doi.org/10.1038/sj.ejcn.1601478] (3)

Good health begins with smart nutrition. Our natural, Swiss supplements use only premium, fully traceable ingredients supported by scientific research. With the right supplements, targeted to your needs, you can boost your energy, strengthen your immune system, and live your life to the fullest—with products you can rely on.