This includes the obvious meats, poultry, and fish, but anything that comes from
an animal also like cheese, milk, eggs
, chicken soup, things cooked in chicken or beef stock or flavored with it, etc. It's certainly a lifestyle choice that is not for everyone.
Be aware that there's a lot vital nutrients that we take in from animal products that you will need to find in other places. Iron, Calcium, Protein, B12, and some others are necessary to be healthy.