vegetarian, but your evolutionary heritage
isn’t one of them. We have no fermenting
chamber in our intestines to digest plant
cellulose, and our metabolism has several
adaptations that suggest we evolved from
animals that ate meat: for example, our
intestines have receptors to absorb heme
iron, which is only found in meat. We also
can’t make our own vitamin B12, and
we synthesize taurine and vitamin A very
slowly. These nutrients are much easier
to get from meat than plants. Before the
advent of agriculture, it would have been
very hard to get all the right nutrients from
plants alone.
