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.

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.

Your 'Pringle' contains 30% potato, that yoghurt has the same amount of sugar as ice cream, that whole grain cereal bar may be no better for you than a snickers.

This evidence is overwhelming at this point. You eat more plants, you eat less other stuff, you live longer.

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?

Junk food companies are acting very much like tobacco companies did 30 years ago.

If price spikes don't change eating habits, perhaps the combination of deforestation, pollution, climate change, starvation, heart disease and animal cruelty will gradually encourage the simple daily act of eating more plants and fewer animals.