8) Humans are meant to be carnivores, just look at our canine teeth. Humans’ teeth are designed primarily for chewing plant-based foods, like our primate cousins do. Humans “fangs” are teensy compared to those of gorillas, who... are strict vegetarians and only show them to appear fierce. Also, our intestinal tract is long to allow for the slow digestion of high-fiber foods, while true carnivores have short intestines as needed to process meat and dispose of the resulting toxic wastes quickly.