We need to demonise soda, the way we've demonised cigarettes.

Our demand for meat, dairy and refined carbohydrates - the world consumes one billion cans or bottles of Coke a day - our demand for these things, not our need, our want - drives us to consume way more calories than are good for us.

I think people at least now, as opposed to ten-15-20 years ago, kind of get it, what is the bad food. I think, before, there was a time when they didn't even get it that processed food was hurting them. Now, I think they get that, but the big enemies to switching over to good food are convenience.

I live full-time in the world of omnivores, and I've never wanted to leave. But the Standard American Diet (yes, it's SAD) got to me as it gets to almost everyone in this country.

Let me pose you a question. Can farm-raised salmon be organic when its feed has nothing to do with its natural diet, even if the feed itself is supposedly organic, and the fish themselves are packed tightly in pens, swimming in their own filth?

If you're a progressive, if you're driving a Prius, or you're shopping green or you're looking for organic, you should probably be a semi-vegetarian.

Thanks to farm subsidies, the fine collaboration between agribusiness and Congress, soy, corn and cattle became king. And chicken soon joined them on the throne. It was during this period that the cycle of dietary and planetary destruction began, the thing we're only realizing just now.