When we started our investigation, we realised that ‘advertising’ (as per our original mandate) can be interpreted very broadly. The terminology we found more frequently used was expressed as an ‘intervention’, which could include all manner of communications including pamphlets, posters, public relations, sampling, events, school education programs and retail promotions. Even packaging can be a form of advertising, and indeed often it is a well-executed retail presence that has a significant bearing upon consumer purchase. We rapidly realised that too narrow a lens would exclude many important reports as to the success or failure of different interventions. So, in the interest of a more complete report, we opted to take a wider view. We did this by reviewing the literature in three categories: 1. National diet programs 2. Regional and localised programs 3. Specific commodity programs