There are lots of foods that can eaten raw, it's more a matter of whether out guts can digest them or not.Yes, but don't the Japanese eat raw fish.
We cook food either to make it digestible or to kill off parasites in it.
Raw beef in steak tartar,
We can not break down the complex carbohydrates in flour until it has been combined with something else ans cooked.
Even a simple, flour water paste can then be cooked on a hot pan making it far easier for our guts to handle