Please comment, recommend related projects or write a new one!
Check Cdc.gov letter O for ideas.
Seems the old forum post is gone :/ (Idea: http://scratch.mit.edu/forums/viewtopic.php?pid=1088925 controversial matter, interesting discussion)
Any project must serve this forums topic.
Do not stigmatize obese people. You never know if there is an underlying genetically or medical condition.
Search the web how Japan tackles obesity _meow_