Evidence standards

Fact-Checking and Sources Policy

This policy explains which sources we prefer and how health claims, statistics, quotations and product information are checked.

Last updated: 20 July 2026

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Preferred source hierarchy

1. Government and public-health agencies
2. Official regulators and medicine-safety authorities
3. Peer-reviewed systematic reviews, clinical guidelines and original research
4. Recognized hospitals, universities and professional organizations
5. Official manufacturer documents for product specifications, ingredients and pricing
6. First-hand testing and clearly labelled personal experience

Primary sources first

When reporting a study, approval, recall or policy change, we aim to link to the original paper, regulator announcement or official document rather than relying only on another publisher’s summary.

How claims are checked

• Names, dates, numbers and quotations are compared with the original source.
• Study design and population are checked before conclusions are generalized.
• Relative and absolute risk should not be confused.
• Animal, laboratory and observational findings are not presented as proven human treatment.
• Product availability and prices are dated because they can change.

Source links and limitations

Important factual health claims should be supported by links or citations. Articles should also explain meaningful limitations, uncertainty, conflicts of interest and when professional advice is appropriate.

AI-generated errors

Information produced by an AI tool is not accepted as a source. Claims must be checked against reliable documents before publication.