Outcomes of Healthy Eating Ad Campaigns: A Systematic Review

Area of Science:

• Public Health
• Behavioral Science
• Health Communication

Background:

• Social marketing campaigns are increasingly used to promote healthy eating behaviors.
• A systematic review examining the success of different behavior change strategies in these campaigns is needed.
• Understanding the impact of 'stop' (e.g., avoiding fast food) versus 'go' (e.g., eating fruits) behaviors is crucial.

Purpose of the Study:

• To systematically review the effectiveness of social marketing campaigns promoting healthy eating.
• To analyze the success rates of campaigns based on the types of behaviors promoted (stop, go, or combined/unclear).
• To identify campaign characteristics associated with greater success.

Main Methods:

• A systematic search of five databases was conducted for peer-reviewed quantitative studies.
• Studies included were those examining healthy eating campaigns with at least one advertisement.
• Data on promoted behaviors and campaign outcomes were extracted and analyzed.

Main Results:

• Campaigns promoting both 'stop' and 'go' behaviors (e.g., food swapping) were more successful than those with only one type of outcome.
• Campaigns with unclear behavioral outcomes (e.g., calling a coach) also showed higher success rates than simple 'stop' or 'go' campaigns.
• Campaigns lasting longer than six months demonstrated consistent success.

Conclusions:

• Social marketing campaigns for healthy eating benefit from promoting multifaceted behavior changes.
• Campaign duration and clarity of behavioral goals are important factors for effectiveness.
• Further research with more studies is necessary to fully understand optimal strategies for healthy eating promotion.