Health warnings in booze app put to the test
Knowledge-focused
Completed
This study looked at whether showing health warning messages in a mobile app where people buy alcohol affects how much they purchase. Over 11,000 Swedish adults used the Systembolaget app and were randomly assigned to see either health warnings or standard messages. The goal was …
Phase: NA • Sponsor: World Health Organization • Aim: Knowledge-focused
Last updated May 14, 2026 12:05 UTC