If you hadn’t realized it, the commercial production of meat is one of the most wasteful systems in our society. How wasteful? It turns out that if you’re eating the typical American diet, the food you’re consuming has twice as many embodied fossil fuels as a vegetarian diet, roughly the equivalent of driving an extra 11 miles every day.

Doesn’t sound like that much? Put another way, it is actually more energy efficient to drive than it is to walk if the calories you burn are coming from that meat-rich diet. How’s that for a mindfuck?

(some more detailed information and sources, here)