Unfortunately, it seems that pokemon society is not vegan so it's also canon that people just eat pokemon.

It's way funnier than that. The Pokémon company has anthropomorphized Pokémon so much that they feel icky about killing them. But they also have chronic carnism brain. The result? They've recently designed a Pokémon with a limb that falls off so humans can harvest their meat without feeling bad. There's a scene in one of the shows where a character straight up drinks Shuckle juice from its orifices. Actually, that carnist design goes back a couple decades. People will literally come up with the most ridiculous explanations in their FANTASY world instead of just making it vegan.