Iron supplement labels and warnings: UK buying dossier
Iron products can differ in compound, elemental amount, format and warnings. A buying dossier must not diagnose deficiency or recommend a dose.
Compare declared iron while keeping personal need out of the shortlist
Iron products can differ in compound, elemental amount, format and warnings. A buying dossier must not diagnose deficiency or recommend a dose.
Named iron compound
01Compare: Record the exact iron compound where stated and distinguish it from generic front-label “iron”.
Why it matters: Different compound names do not by themselves establish superiority or tolerance.
Evidence check: Use the current ingredients list and do not infer the form when it is absent.
Labelled iron amount
02Compare: Compare explicitly labelled iron in milligrams on the same stated-portion basis.
Why it matters: Compound mass, tablet mass and elemental iron are not interchangeable quantities.
Evidence check: Record amount, unit, portion and nutrient reference value information together.
Warnings and storage
03Compare: Read all current age, medicine, pregnancy, keep-away-from-children and other warning or storage text.
Why it matters: Warnings can be more important than format or price in this category.
Evidence check: Use the exact physical pack and seek qualified advice when a warning may apply.
Format, other ingredients and claims
04Compare: Compare tablet, capsule, liquid or blend, plus carrier ingredients, allergens and exact claim wording.
Why it matters: A multinutrient product is not like-for-like with a single-ingredient iron product.
Evidence check: Choose the formula type first and check any claim against the official register.
Three checks before checkout
Enough detail to make the choice better informed and clearer, without turning a quick buying decision into a compliance manual.
- 1 Check the named form, labelled amount, warnings and whether qualified advice is needed before purchase.
- 2 Match the exact flavour, variant, pack and formula rather than a similar marketplace image.
- 3 Use the current physical label for ingredients, allergens, warnings and stated serving information.
Take the next useful step
Continue to the closest practical comparison or official source.
Why these checks matter in the UK
Compare the food label, ingredients, amount per stated serving, warnings and allergens; do not use the page as medical advice.
Food supplements are regulated as foods rather than medicines.
Great Britain · current
Treat a claim as a constrained label statement, not proof that the product will deliver the outcome for a particular person.
Nutrition and health claims used in Great Britain need an authorised basis and must meet the exact conditions of use.
Great Britain · current
Check the market named on the label and use the matching official source rather than assuming one UK-wide claims register.
Some food-supplement and claims rules differ between Great Britain and Northern Ireland.
Great Britain, Northern Ireland · current
Sources and review boundaries
- Department of Health and Social Care: Food supplements guidance — reviewed 2026-08-03; Food-supplement rules differ between Great Britain and Northern Ireland in some areas.
- Department of Health and Social Care: Great Britain nutrition and health claims register — reviewed 2026-08-03; A listed claim remains subject to its exact conditions of use and the product label.