Re: "Let them eat cake!!!"
Most people are aware to some consequential degree that fast food is unhealthy, but many of them will still do it. Why? This is a much larger question than it appears to be.
Its a personal choice. If you have the sense to be healthy (not just what is said to be healthy) and to seriously look into the subject of health for yourself, then that is good. Organic produce and the like is just marketing, the standards for an Organic rating are remarkably low, so I hear. Same as with the Green campaigns, which only got going out of a media-induced guilty collective conscience, and on a whole does nothing substantial to ameliorate the issue of industrial pollution. Same as with dietary pollution.