I've yet to have someone claiming meat is good for them explain anything in detail to me. It usually goes:
Joe: Meat is good
Joe: it's got protein
Me: name something without protein
Joe: Uh, meat isn't bad
Me: What about cholesterol and high fat content? Parasites and carcinogens? The pain of the animal?(if they are capable of empathy)
Joe: There's no proof of that
Me: Only scientific studies that link high cholesterol and fat intake to heart disease and kidney failure. Also it's true, the animals are killed before you eat them.
Joe: But it says here at MeatisGood.Beef.com that's not true
Me: it's funded by the beef industry, it says so on the front page
Joe: You're a vegan-nazi
Me: a what?
Joe: you're forcing your views on me!
Me: Ah, you started the whole conversation, and is discussion bad?
Joe: ah, no, PeTA sucks! I saw it on TV
Me: What does that have to do with our conversation?
Joe: (fingers in ears, eyes closed, stomping feet) LA LA LA LA LA I CAN'T HEAR YOU! Runs away....