Policy

Sourcing & Citation Policy

Every claim on this site links to the real source it came from — a study, a regulator, a reference article, or a community report. This page is the whole method behind that: which sources we use, what each is worth, what we refuse to treat as evidence, and the rule that keeps a weak source from ever reading as a strong one.

The one rule that matters

A claim can never score higher than the source it came from. Each source is sorted into a reliability tier, and that tier is the ceiling on any claim drawn from it — set by where the source was published (its domain), not by how the source describes itself. A vendor’s product page is a vendor’s product page no matter what it claims, so it can never produce a research-grade score. The ceiling is computed in code; it is not an editorial judgment someone can override.

The reliability tiers

High to low. The base score is the most a claim sourced here can reach before corroboration or conflict adjust it.

  • 95Peer-reviewed studyPublished in a peer-reviewed journal. The gold standard — other experts checked the methods before it ran.
  • 90Regulator or clinical registryIssued by a regulator or a clinical trial registry. Carries the weight of an official health authority.
  • 72Established referenceReputable reference outlets and newsrooms with editorial oversight and fact-checking.
  • 60Specialist communityExpert forums, practitioner communities, and industry trade press. Useful primary signal, short of peer review.
  • 50Unclassified sourceA page our classifier could not place in a stronger tier. Kept on the ledger at a neutral score rather than guessed at.
  • 40Vendor / seller pageA product page whose job is to sell. May describe real products, but its claims exist to convert buyers.
  • 30Forum or blogAnecdote and opinion from forums and blogs. Genuine experience, but unverified and often second-hand.
  • 12Marketing copyPure promotion — written to sell, not to inform.

What we use — and what we don’t

  • We use peer-reviewed research, clinical guidelines and regulator pages, established medical reference, specialist communities, and — clearly labelled, at a low tier — vendor pages and forums, so you can see what the market is saying without mistaking it for evidence.
  • We refuse to let marketing copy stand as a claim. A supplier’s “clinically proven” is recorded as a vendor claim at a vendor score, with a note to verify it independently — never as established fact.
  • Every claim is drill-through. Tap the source link on any claim to read where it came from and decide for yourself. If we can’t link a claim to a real source, it doesn’t publish.

The full scoring math (corroboration boosts, conflict penalties, the publish threshold) is on our methodology page. Found a source we’ve mis-scored? See our corrections policy.

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