Understanding Immunity: How Your Body Defends Itself
on October 30, 2026

Understanding Immunity: How Your Body Defends Itself

Immunity 🛡️

Your immune system is a vast, coordinated network of cells, tissues and organs working together to defend your body against everyday threats, from the common cold to minor cuts. It’s constantly active in the background, often responding to potential issues before you’re even aware of them.

Our Immunity category brings together three products: a vitamin blend with an established role in immune function, and two botanical extracts included for their traditional use and composition, not as a claim that they strengthen or boost the immune system.

Immune Function Is a Whole-Body Effort

The immune system isn’t a single organ. It’s spread throughout the body, involving:

  • 🩸 White blood cells
  • 💧 The lymphatic system
  • 🦠 The gut
  • 🧴 The skin

That’s why so many everyday factors influence it:

  • 😴 Sleep
  • 🧠 Stress levels
  • 🥗 Diet
  • 💦 Hydration
  • 🏃 Physical activity
  • ⏳ Age

Certain nutrients have a well-established role here. Vitamin C and vitamin D both contribute to the normal function of the immune system, an authorised health claim under UK food law.

A Note on “Immune Boosting”

You’ll often see supplements marketed as “immune boosting”, but strictly speaking, there’s no such thing as boosting immunity beyond its normal function.

A healthy immune system doesn’t need to be artificially heightened. What nutrients like vitamins C and D can do is contribute to its normal function, particularly if your diet is low in them. We’ve been careful to keep that distinction throughout this article.

Why People Are Interested in Chaga and Soursop

Alongside the vitamins, there’s longstanding traditional interest in certain fungi and fruits:

  • Chaga: a fungus with a long history of traditional use, particularly across Northern and Eastern Europe
  • Soursop: a tropical fruit native to Central and South America, used in many culinary and folk traditions

What Supplements Can and Can’t Do

Food supplements are intended to complement a varied, balanced diet, not replace one, and they’re not a substitute for a healthy lifestyle.

Our Immunity range is not intended to diagnose, treat, cure or prevent any disease or medical condition, including infections or illness.

💬 If you’re feeling unwell, or have ongoing concerns about your immune health, we’d always recommend speaking to your GP or a healthcare professional.

Meet the Immunity Range

With that context in mind, here’s a closer look at the three products in our Immunity collection.

☀️ Vitamin D3, K2 & C Blend
Three vitamins in one capsule. Vitamin D and vitamin C both contribute to the normal function of the immune system, and vitamin D and vitamin K both contribute to the maintenance of normal bones.
[Shop Vitamin D3, K2 & C Blend →]

🍄 Chaga Mushroom
A distinctive, dark fungus that grows on birch trees, mainly in colder climates, with a long history of traditional use in Northern and Eastern European folk practices.
[Shop Chaga Mushroom →]

🍈 Soursop
A tropical fruit native to Central and South America, known for its spiky green skin and creamy white flesh. Ours is a concentrated 10:1 extract, with 500mg per capsule.
[Shop Soursop →]