As with anything, moderation is key. You don't have to live a vegetarian lifestyle to be in your 60's and be active. My dad is 2 years from 70 years old, six pack and all, and a recently retired cardiologist who eats meat daily, but never in my life have I seen him touch anything fried or just generally unhealthy (like pizza). A healthy mix of lean meats and fruits and veggies is ideal.