There are too darned many people who develop all sorts of phobias about foods based on incomplete and misleading news articles. Eating should be an enjoyable, pleasurable experience, but I now know far too many people who obsess about what they eat, and often don't really enjoy mealtime like they used to.
If vegetarians were really that much more healthy, and if they really lived a lot longer, we'd see this in our own daily experience, much like many of us have seen the effects of tobacco smoking over the years. The easy and obvious observation from sixty-six years of living is that tobacco makes people die early, and makes them unhealthy while they are living. Using those same observational tools shows me that red meat does not do either of these things.
I will also add that because my dad started reading Adelle Davis (original health food guru) in the late 1950s I got introduced to health food stores very early in life. My experience then, as well as now, is some of the least healthy people I know are those who get their head turned around by some of these news stories and then start pursuing strange diets in order to get healthier. You see them in the health food stores, and they are usually don't look robust.
The problem is that most of these diets -- including most vegetarian diets -- are woefully lacking in critical nutrients. As one example, it is quite common for vegetarians to be deficient in various B vitamins, something that is plentiful in meat.
Vegetarian Vitamin B Deficiency
So, follow SmokinAl's advice (he's
always right) and get as much exercise as your health allows, but don't spend a second worrying about whether you are eating too much of this or that.