As a vegetarian, I don't eat meat. It isn't the only source of protein, quite the contrary. The idea that meat is healthy for us is a myth. Our bodies don't generally digest it well, it turns to fat, causes cholestrol, and all the problems that go with it. Vegetarians in general live longer and, for those who care about such matters, lol, have better sexual function as they age because their circulation is better.

It's lack of iron that is more of a concern to the vegetarian, but again this can be got from other foods, and if need be a supplement.