An effort by Dr Robert Lustig and Kuwaiti Danish Dairy Company may be an example. Not targeted at obesity specifically but more general metabolic health: https://agfundernews.com/dr-robert-lustig-unveils-strategy-t...

Edit: Kuwait because it is small enough and has higher obesity rate than US (8th and 9th place as of 2016) https://web.archive.org/web/20071016062334/http://www.forbes...