Those trying to have their side of beef and eat it, too, often talk about narrowing the gap between modern meat, and the kind of meat we "should" all eat. Pure meat. Ethically raised, free to range, well fed, organic, and all that.
One of the diets that has stood the test of time, has been followed by real people and has the research to support it, is the Mediterranean diet. A non-restricting diet associated with numerous health benefits. And while it is a specific way of eating, it is also a way of living.