People who argue that humans do not have the "sharp claws, fangs, etc." of a carnivore are using a fallacious argument. Humans and our ancestors have used tools since the beginning of our existence. Even chimps use tools. Just because they need tools to eat grubs and insects does not mean they are not adapted to eat them. They don't need "stick tongues, burrowing claws to get into anthills, fast reflexes, long tongues" or any other traits classically associated with insectivorism. They simply have tools and primitive culture (learned behaviors passed through generations) that keeps the consumption of insects alive. Chimps eat meat, as seen in the video above. They lack fangs, biting teeth, etc., but they still eat meat.
Similarly, anthropological evidence demonstrates that humans ate more meat as we became more like our current form. Cut marks from stone tools in marrow bones show that we were scavengers and could eat what other carnivores often could not, the rich and nutritious marrow. Spears later allowed us to hunt animals.
Interestingly, the spears of our cousins the Neaderthals were designed for jabbing, not throwing, while ours could be thrown from a distance. This may have made us better hunters than them.
Also, consider primitive cultures.
Some exist that eat pure meat or almost pure meat diets. Think of the Chukchi of Russia or the Inuit of Alaska and Northern Canada. The most vegetation the latter ever got before the arrival of explorers and civilization were cranberries.
This doesn't make modern meat the healthiest food out there, but it does show we evolved with it.
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