Almost always when I told someone I was writing a book about "eating animals", they assumed, even without knowing anything about my views, that it was a case for vegetarianism. It's a telling assumption, one that implies not only that a thorough inquiry into animal agriculture would lead one away from eating meat, but that most people already know that to be the case.
Eating Animals (ed. Penguin UK, 2010) - ISBN: 9780141932651