> There are certain amino acids the body can't make itself

This is a common myth, plants contain all the essential amino acids. A cows gut does not magically create essential amino acids, it takes them from plants, and so can we.

There is no magical ingredient in animal products, they are completely optional for a healthy diet.

I literally said “getting them from plants is of course possible”, my observation was a it’s easier to get the right amounts of the amino acids from a source that already did the balancing for you vs eating a wide range of plant matter rich in some and not others.

Meat and eggs are complete proteins in and of themselves, as a single source they are complete in all the essential amino acids, plants aren’t so you have to be more careful to get a decent mix.

I’ve no dog in this fight, I’m not a vegan or vegetarian but I also eat very little meat for medical reasons so I made sure I ate an increased range of plants to compensate.

Cows get those eaas from grasses we can't eat.