>>3850713Think of the smartest animal in the world. Is it a herbivore? No. Aside from elephants, there is no entirely herbivorous animal that is as capable of cognition as carnivores. This has to do with vitamins like B16, which promote neural activity and brain growth. Funny thing too, vegans and vegetarians have found that even taking supplements for these vitamins isn’t enough. Supplements don’t stimulate the natural process of absorption from our bodies. So they have to take large doses to make up for it. Look up “vegetarian brain fog”. This is what they call it when they’re low on B vitamins. They find it difficult to think and focus. Now imagine if the entire world were dependent on massive doses of B vitamin supplements just to avoid being retarded. Sounds sustainable to me