The Mindful Carnivore writes:
Venison, a forester friend tells me, is the best way he knows to eat trees. He points out that whitetails do a dandy job of converting cellulose into protein.
When Cath and I sit down to a bowl of venison stew, we are eating more than potato, carrot, and deer. We are also eating maple seedlings and cedar twigs. We are eating clover from a nearby meadow and corn from the edge of a farm field. We might even be eating hosta leaves and daylily buds from our own flower gardens.
If we lived where soy crops were common, they and we would be eating many more soybeans. (Given deer’s fondness for soy, I think it’s fair to consider Illinois venison a highly metabolized form of tofu.)
The rest is an "I used to be a vegan until I learned how many animals are killed running a farm" story--a surprisingly common genre.