IPhone App Gets You To Eat Better, Using The Crowd's IQ
fastcodesign.com
fastcodesign.com
The only question is, do we really know anymore what "healthy" is? If I eat a cheese omelet, some may consider that a healthy "paleo diet" food item or a cholesterol-ridden fat bomb, depending on who you ask.
Plus, since you'd (hopefully) be embarrassed to put a pic of that bag of cheetos to public scrutiny, as long as you keep snapping absolutely everything you eat, it should work great in curbing your tendencies to eat junk food.