The vegan propaganda that humans are full-on herbivores and we were never "meant" to eat meat is so fucking stupid and blatantly false for a number of reasons.
- Archeological evidence suggests that the very first tools invented were used as hunting weapons and/or used to butcher meat. By at least 500,000 years ago, early humans were making wooden spears and using them to kill large animals. If vegans want to use the ~natural~ argument, they probably shouldn't gloss over the fact that humans have hunting and eating meat for hundreds of thousands of years.
- Going off on that, if humans couldn't digest meat, we wouldn't eat it. Our ancestors wouldn't have eaten it. We wouldn't have spent thousands of years hunting and domesticating animals to get their meat, because it would have been been a massive waste of time and effort.
- I've also heard the argument that humans cannot possibly be carnivores or omnivores because we don't have huge canine teeth or claws. Guess what, we don't have those things because we don't need them. Our highly developed brains make those things obsolete because hunting weapons and traps are far more effective. Humans didn't evolve sharp teeth and claws because, again, we've been using hunting weapons for hundreds of thousands of years.
- We have biting/tearing/ripping incisors and canines (like carnivores) and chewing molars (like herbivores). Animals with such diverse teeth tend to be omnivores.
- Humans require vitamin B12 to thrive, which can only come from animal sources or certain bacteria (vegans must supplement their diet).
- There's actually strong evidence that meat-eating was a critical part of our evolution. Meat packs a lot more calories and protein than plant-based foods. This made extra energy available to power our brains. Your brain is about 5% of your body weight, but about 25% of the energy (calories) you eat gets spent on running your brain.
Humans are omnivores. Period. Vegans need to stop spreading this bullshit nonsense that humans are natural herbivores if they want to be taken seriously. There's a valid argument that we've reached a point where we don't NEED to eat meat, even though we naturally would and obviously could; this is what sane vegans argue. But pretending that humans have been eating meat for hundreds of thousands of years for no real reason is fucking asinine and it makes me tune out whoever says it every time.