Confidence, stated out loud.
Fertility advice online mixes strong evidence with speculation and sells both with equal confidence. Seminal labels every claim instead.
Five labels, one rule
Every statement in the product carries one of these labels. The rule: a label can move a recommendation down in confidence, never up.
Established clinical determinant Strong, consistent clinical evidence. These drive prominent warnings and clinician-directed pathways — for example, a varicocele or an azoospermic result routes you to a urologist, not a supplement.
Supported modifiable factor Consistent human evidence, sometimes including intervention studies. Only factors with this label or stronger can enter your protocol.
Emerging association Plausible human evidence that remains limited, heterogeneous or observational — microplastics, some endocrine disruptors. Shown for context, never scored.
Insufficient for scoring Conflicting, preclinical or inadequately measured. Excluded from scores and recommendations entirely, and we say so.
Measurement modifier Affects the sample rather than you — abstinence time, fever in the past three months, transport delay. These adjust interpretation of a result, not your underlying health.
What every claim carries
- The measured outcome — concentration, motility, DNA fragmentation, time to pregnancy — never just “fertility”.
- The study design and population it comes from.
- Whether the result is causal, observational, mechanistic or predictive.
- An evidence-confidence label and the source, with the date last reviewed.
What we will not do
- Present an association as your personal causal effect.
- Colour a clinical value red or green, or fold it into a score.
- Promise a pregnancy outcome — no dataset we use can support that claim.
- Publish a recommendation without clinical review.