Downvoting facts instead of understanding nutriention is also quintessentially American.
Not only Americans unfortunately
When i asked the pupil in my class what they thought the most eaten food by gladiators was, 4/5 said meat, only one knew that it was mainly grains.
Meat is generally a good protein source, not the only one by far though. In my experience it’s usually cheaper per gram. But if that’s not a huge concern then there’s a lot of things that work pretty well instead.
Meat comes with unavoidable negative consequences to health. The more meat you eat, the younger you die and the more major diseases you experience. Nobody in the world who is getting enough calories from plants is suffering from a lack of protein. It’s not a real thing.