Immune-Support Supplements: The Nutrients That Can Actually Claim It (UK)
Every cold season, "immune-boosting" supplements flood the shelves. It's worth knowing that "boost your immunity" is not an authorised claim in Great Britain — the approved wording is the more modest "contributes to the normal function of the immune system." The good news: a solid list of everyday nutrients genuinely carries that claim. Here's the legitimate line-up.
The nutrients that support normal immune function
Each of these is on the GB register for immune support, provided it's present at ≥15% NRV per serving:
"Boost" vs "normal function". Marketing loves "boost", "supercharge", "shield". The rulebook allows only "contributes to the normal function of the immune system" — because supplements support a system working normally, they don't super-power it. Seeing the modest wording is a sign a brand is playing by the rules.
What about echinacea, elderberry and mushrooms?
Popular immune botanicals — echinacea, elderberry, medicinal mushrooms — have no authorised immune claim in Great Britain. They're widely used and researched, but a UK product can describe what they are, not promise an immune benefit. If an immune formula makes a legitimate claim, it's coming from the vitamins and minerals above.
Go deeper
Guides to the immune nutrients we cover: zinc, the vitamin D in our electrolyte complex, and the selenium alongside iodine. And for the honest take on the botanicals, our echinacea guide.
References
- Great Britain Nutrition and Health Claims (NHC) Register — "normal function of the immune system" claims: gov.uk/…/great-britain-nutrition-and-health-claims-nhc-register
- NHS — Vitamin D & winter supplementation: nhs.uk/conditions/vitamins-and-minerals/vitamin-d
This article is general information, not medical advice. Supplements support a normally functioning immune system; they are not a treatment or a shield against infection. Food supplements should not replace a varied, balanced diet or a healthy lifestyle.
Comments (0)