I don't like lean meat much, except for steak tartare. My meat only period was during the winter, though, and I eat a lot of soups and stews in cold weather, that year a lot of beef brisket, pork shoulder, and chicken leg quarters, none of which are very lean. And I don't have a car so I do a lot of walking, even when I might prefer not to (like in the snow).
Here. A number of people here are fans of Taubes' work, and so I thought they would be interested in a well-referenced criticism. Hat tip to Landsknecht.