The useful skill here is not scientific literacy. Most overstated health claims are not defeated by understanding the biology — they are defeated by noticing the structure of the sentence, and the structure repeats.
Four moves, a short list of language tells, and one question that does most of the work.
General information about reading marketing, not medical advice. Nothing here replaces a conversation with a doctor about a specific condition or treatment.
The four moves
The language tells
Regulators in most countries draw a line between structure-and-function language, which is loosely permitted, and disease claims, which are not. Marketers write right up to that line, and the result is a recognisable vocabulary.
- "Supports", "promotes", "helps maintain", "aids" — the sound of a claim that cannot be stated more precisely.
- "Detox", "cleanse", "boost immunity", "balance" — terms with no agreed clinical meaning, which is what makes them safe to print.
- "Natural", "chemical-free", "pure" — unregulated in most contexts and unrelated to safety or effect.
- "Clinically proven" with no study named. Ask which study, in whom, how many, for how long.
- "Doctors recommend" with no doctor named. Anonymous authority is not authority.
The question that does most of the work
Is this claim about the product, about a laboratory result, or about me?
Claims about the product — what it contains, what it is made of, what it costs to run — are checkable and belong in a purchase decision. Claims about a laboratory result are usually true and usually irrelevant. Claims about you are the ones that need evidence, and they are the ones most often made without it.
For anything you are actually considering buying, the six-question version for studies is in how to read a hydrogen water study, and the label version is in how to read a supplement label.
Applied to this site
It would be strange to publish this and exempt ourselves, so: the honest claims we can make about the products sold here are that a home water system can be more convenient than delivery, can cost less over years, and tends to result in a household drinking more water because the friction disappeared.
What we cannot claim is any health outcome. The research on molecular hydrogen is preliminary — small samples, short interventions, inconsistent protocols — and that is stated in full in what hydrogen water research has and has not shown. The Ukon products are food supplements and carry the required advisory, discussed in what Ukon turmeric actually is.
Where this matters most
Not with water filters or vitamins, where the cost of being wrong is money. It matters when someone is seriously ill and a product is offered as an alternative to treatment.
That is the situation these techniques exist for, and the correct response to it is not evaluation but refusal — no legitimate product asks you to stop a treatment, and anyone suggesting otherwise should be reported to the FDA rather than argued with.
Sources
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