Cooking is not a methylmercury control

The controlling scientific record is the public Heavy Metal Index synthesis, supported by 3 named anchor sources and expressed for Methylmercury, Mercury.

ICS does not reproduce the source extraction here. Keeping the evidence on the independent index preserves source-level methods, units, species, basis, uncertainty, and review state. This note records only the institutional consequence of that evidence.

Reject preparation-based mitigation claims for methylmercury and assess the food on the governed native basis without promising that household cooking removes the hazard.

This disposition may change taxonomy, analyte coverage, test basis, surveillance priority, disclosure, or claim language. It does not allow a market occurrence percentile or a dramatic single study to become an initial certification value.

The finding is published in two additional authority layers: the HMI evidence record and the HMTc certification interpretation. Distribution should prioritize seafood suppliers, retailers, consumer educators, journalists while preserving those distinct roles in headlines, briefings, interviews, and social posts.