Bad news for beef lovers. Another study has shown that the most environmentally harmful animal in the American diet is beef. Compared to pork, poultry, or eggs in a per-calorie comparison, beef was worse in every measure – water, land, fertilizer. It’s useful information for those who are considering cutting meat from their diet for environmental reasons…a huge first step would be to just minimize how much beef and dairy you consume. There’s no way I’m cutting beef out of my diet entirely…I’m too much of a steak lover for that! Including more poultry and pork looks like a good move though.