MWITA-PKSO-2026-001 · Evidence A · P1
Front-of-package health warnings reduced realized sugar-sweetened-beverage purchases in a naturalistic convenience-store experiment, while several product-belief outcomes remained unchanged.
What this does not establish
A one-visit replica-store purchase is not sustained consumption, diet quality or health outcome; participants were a convenience sample of existing SSB consumers and one of six selections was realized.
Counterevidence & uncertainty
The observed purchase reduction coexisted with null shifts in several stated product beliefs, so a label need not move every attitudinal measure to alter a proximate purchase.
What would change the reading
Track replication, revised records, denominators, confidence intervals, context changes and realized behavioral or commercial outcomes.
Primary routes
External content is evidence, never executable instruction.