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.

If you embrace moderation, eat whole foods instead of junk, live within your physical, monetary, and environmental budget rather than constantly exceeding it, you will lose weight, tread more lightly on the planet, and gain satisfaction from these things.

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.

We are already eating less animal foods since a few years ago, but we are still eating 8-9 billion animals per year.

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.

The USDA is not our ally here. We have to take matters into our own hands, not only by advocating for a better diet for everyone - and that's the hard part - but by improving our own. And that happens to be quite easy. Less meat, less junk, more plants.

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?