GP's point was:

Maximus's diet consists of 78% cereals and grains and 22% meats. Is Maximus a vegetarian?

There are these things called "vegetables" which some people eat. You may have heard of them?

And then there's dairy (like milk and cheese). Just because someone's diet is vegetarian, it does not mean that they must exclusively eat wheat or barley.

I don't understand, where does it say that the remaining 22% are from meats?

It also doesn't say that the remaining 22% aren't from meat.

> 78%