There's been a growing effort to kick soda out of the schools. And governors as different as Arnold Schwarzenegger in California and Mike Huckabee in Arkansas have worked hard to get soda and junk food out of their state schools, which is good.
I really like visiting schools, but what I tell students isn't anywhere near as interesting to me as what they tell me.
There's also a growing trend toward having gardens in schools to literally show kids where food comes from by having them grow and prepare their own food. There's also a movement that's bringing farmers into schools and creating relationships between local farms and local cafeterias, so that instead of frozen mystery meat, you have fresh produce that's coming from the area that has a name and a face associated with it.
During my school visits, I really enjoy the feedback I get from them much more than anything I might tell say to them.