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?

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.

1 billion people in the world are chronically hungry. 1 billion people are overweight.

Meatless Mondays is a dead-simple strategy. Anyone can do it, and it doesn’t require major sacrifice. Even if you eat a typical American diet replete with processed, junk and fast food the other six days of the week, going meatless on Mondays will still cut your carbon footprint, improve your health and reduce demand for factory-farm meat.

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.

Keeping some calorie-dense food in your diet-whether it is meat, pasta, beer, or cake-allows you to reach satiety more quickly and easily. And this will keep you from feeling deprived.