So, again, what role does society and the marketplace have in supporting healthy lifestyle choices? As a liberal exercise pro, I’d say a large one: more sidewalks, no busing so kids have to walk or bike to the local school (with substantial security provided in areas where this increases risk of danger), no ads for unhealthy foods before 10 a.m. or after 4 p.m. – when kids are most apt to be watching tv, less high fructose corn syrup and other sweetening 
additives, no trans fats in foods, etc etc. and the print, film, and video media should be held to the fire too. There’s no need for all movie stars and pop singers to have to be rail thin just to save them from the 10# gain that film produces. Likewise, models should be able to wear clothes the way people should wear them – with enough size and muscle, and even fat, to look human, not photo shopped.
In other words, it’s in our nation’s and our species’ interest to get a grip and get everyone involved, not in making you feel good about your body – that’s too much to ask from others. In making sure you don’t feel any worse about it than your parents or some other caregiver (think: religious leader) made you feel before you were able to take full responsibility for your life.
