Walk down any high-street health aisle or scroll a wellness website and you’ll meet the same playbook: confident language, glossy badges and prices that imply quality. Most of it is marketing, not medicine. The good news is that overselling follows predictable patterns. Once you know the five most common ones, you can judge almost any health product on its merits — and ignore the noise. Here’s how to spot them.
1. Vague “wellbeing” language that means nothing
Words like “supports immunity”, “boosts energy”, “full of goodness” or “detox” feel meaningful but are deliberately unprovable. Under the UK advertising rules (the CAP Code, enforced by the Advertising Standards Authority), only health claims authorised on the Great Britain Nutrition and Health Claims Register are permitted, and a general wellbeing claim must be tied to a specific authorised claim. A product cannot legally state or imply it prevents, treats or cures a disease.
- Spot it: the claim is positive but unmeasurable, with no specific authorised wording behind it.
- Do this: look for the precise authorised claim (e.g. a named nutrient “contributes to” a named function). If it’s only mood-music, treat it as marketing.
2. “Clinically validated” — but for what, exactly?
“Clinically tested” and “validated” are not the same thing, and neither is automatic. With blood pressure monitors, for example, accuracy depends on the specific model being independently validated against an international standard (the ISO/ESH/AAMI protocol) and listed by the British and Irish Hypertension Society (BIHS). Crucially, validation does not transfer across a brand: a different model from the same maker may not be on the list.
- Spot it: the badge names a brand or a study, not your exact model.
- Do this: check the specific model against the official validated list (BIHS for blood pressure monitors) rather than trusting the box.
3. Dressing up a gadget as a medical device
A genuine medical device must meet the UK Medical Devices Regulations and carry a UKCA or (until 30 June 2028) CE mark, overseen by the MHRA. A general wellness gadget that makes no medical claim sits outside that framework entirely — so a reassuring-looking logo may have nothing to do with medical accuracy.
| Question to ask | Medical device | Consumer gadget |
|---|---|---|
| Carries UKCA/CE medical mark? | Yes, MHRA-overseen | Often not |
| Makes a specific medical claim? | Yes, regulated | Usually avoids it |
| Independently validated for accuracy? | Should be | Frequently not |
- Do this: if a device is meant to diagnose or monitor a condition, confirm it’s a regulated medical device, not a lifestyle gadget.
4. Selling you more than you need
Mega-doses and “premium” strengths play on the idea that more is better. Often it isn’t. For vitamin D, the Scientific Advisory Committee on Nutrition (SACN) sets a reference nutrient intake of just 10 micrograms (400 IU) a day for everyone aged 4 and over — a modest amount the NHS suggests most adults consider in autumn and winter. Doses many times higher are rarely necessary and, with some nutrients, can be harmful.
- Spot it: a strength far above the official recommended intake, framed as “high potency”.
- Do this: compare the dose to the published UK reference intake before paying more for “extra”.
5. Charging you for help that may be free
Some products are sold privately when public support already exists. Home adaptations are a clear example: in England, a means-tested Disabled Facilities Grant of up to £30,000 can fund things like level-access showers, stairlifts, ramps and grab rails. People are sometimes sold equipment at full price without ever being told the grant exists.
- Do this: before buying significant equipment or adaptations, ask your council, GP or an occupational therapist whether NHS or local-authority support applies.
The bottom line
Overselling thrives on confidence and vagueness. Cut through it with four habits: insist on the specific (model, dose, authorised claim — not the brand or the badge); check the official source (BIHS, MHRA, SACN, the NHS); match the dose to the published UK intake; and ask whether free help exists before you pay. A product worth buying will stand up to those questions. One that needs hype usually won’t.
Health Choice UK gives independent, educational guidance — not medical advice. For anything personal, speak to your GP, pharmacist or the NHS.