http://www.nutraingredients.com/news...ns-live-longer
Apparently this German study says they do, but the group that lived the longest were the vegetarians that would occassionally eat meat.
My personal take on it, man was meant to eat meat, and I don't think a study like the one I posted, would be valid if meat wasn't as tampered with as it is now with growth hormones, etc, etc. If you removed that stuff from the raising of livestock...meat eaters would be just as healthy as a vegetarian as long as they kept within moderation.