We have a Buddhist family friend in China, and she said that from the perspective of the Buddhist teaching to not kill, eating krill (a very common umami boosting ingredient in Chinese food, they’re tiny shrimp only about a centimeter long and are sold dried and salted) is the worst type of eating meat because it kills the most animals per meal (hundreds of krill as opposed to a single pig or cow, etc). I’d imagine she’d think the same for insect burgers and stuff like that.

I know that veganism and the religion of Buddhism aren’t the same thing, but I think this applies to both.