But while those pesky veggies are trying to convert you to their meat-free ways, here's nine reasons why you shouldn't:
1) Cows will take over the world
Every year in the UK we slaughter 2.5million land animals for food - and a good job too. If we kept breeding them at the current rate but didn't eat them, there'd be cows and chickens running wild in the streets.
2) Vegetarians and vegans are soft as clarts
Look at David Haye. He's supposed to be a tough boxer whose been world champion in two weight categories, but admits getting upset at the thought of eating animals. Softie.
3) Hitler was a vegetarian
There hasn't been enough research done into a possible link between Hitler's crimes against humanity and his vegetarianism. He was also a painter, whistled, and had facial hair, so don't do any of those things either.
4) Veggie-types are unhealthy
While various studies have shown a vegetarian diet can lower the risk of heart problems, cancer, and diabetes, as well as being better for the gut and skin, we all know someone who knew someone who tried giving up meat and felt really unhealthy as a result.
5) Where would you get your protein from?
Aside from pasta, bread, nuts, beans, peanut butter, houmous, soya, lentils, broccoli, cauliflower, asparagus, and so on, of course, there's no protein in an animal-free diet.
6) Humans were designed to eat meat
Being vegetarian is unnatural. And while we're on the subject, so is driving cars, watching TV, and turning on the central heating. Let's get back to Stone Age living as soon as possible. The paleo diet is in fashion, after all.
7) Meat tastes really good (and, for those of a religious persuasion, if your chosen deity hadn't meant for us to eat animals - why did he make them so tasty?)
Vegetarians and vegans' main reason for giving up meat is of course because they don't like tasty foods. Don't they ever just want a bacon sandwich?
8) What if plants feel pain too?
I mean, they don't have a central nervous system, but that's not real proof. We just don't know.
More plants are used to feed the animals we slaughter for meat than if we just ate those crops ourselves. But see above: meat tastes so good.
9) Vegetarians and vegans are forever getting stuck on desert islands with an animal, and having to decide whether they should starve to death or eat it
This happens more than you might think.