i just wanted to say that a diet of meat and veg doesn't automatically mean it's more unhealthy. obesity/shortened age is a problem if you over do it on fatty stuff and trans fats and all the fast food... i could go on. of course on the other hand, being veg means that most of that crap is out of your diet anyways... a definite bonus!
the key to health is just a good well balanced diet and plenty of excercise. and a lack of other crap like smoking too for example.