I went through a vegetarian "phase" a couple years ago. It was... odd. Basically what happened was when I took my first yoga class, I completely lost my tastes for meat. Except for the occasional fish. I'm still not sure why. For the most part, I wasn't one of those annoying vegetarians that are all preachy and stuff, but I do remember one time sitting there listening to a couple friends talk about butchering lambs, and I got so upset I started crying. It's certainly easier to eat healthy as a "normal" eater, but I do still think that overall being a vegetarian is probably healthier. But, I will admit that a lot of those so called arguments on that webpage are horse ****.
In particular, the one on hunger. People don't starve because we don't have enough food, people starve because food is too bloody expensive. It's only gotten worse since we started using corn for biofuel. That caused the price of corn to go up a lot in developing countries, which made it more difficult for the locals to purchase it.