Source hierarchy
We prefer evidence that is current, directly relevant to PCOS and appropriate to the strength of the claim.
- Clinical guidelines and consensus statements
- Systematic reviews and meta-analyses
- Randomized controlled trials
- High-quality observational research
- Authoritative public-health and academic sources
- Early or indirect research, clearly labeled as limited
Claim standards
A citation does not automatically make a claim reliable. We consider study design, sample size, population, conflicts, consistency and whether the result applies to people with PCOS.
- We do not claim that a food, supplement or app cures or reverses PCOS.
- Dosage, diagnosis and medication claims require a higher review threshold.
- Animal, laboratory and non-PCOS studies are not described as direct clinical proof.
- Uncertainty and conflicting evidence are stated plainly.
Sources and freshness
Sources should be linked close to the relevant claim or collected in a clearly labeled source section. We reassess time-sensitive medical pages when guidance changes and display a reviewed or updated date when a substantive check occurs.