The vertebrates traditionally include the hagfish, which do not have proper vertebrae, though their closest living relatives, the lampreys, do. Hagfish do, however, possess a cranium. For this reason, the vertebrate subphylum is sometimes referred to as  Craniata  when discussing morphology.
Kitchari is an Indian dish often used for cleansing. When used alone as a mono-diet, it's called a kitchari cleanse, but it can be used in conjunction with other wholesome foods as a part of a cleansing diet. The link above has several different kitchari recipes.
You can eat out while on a low-microbial diet (as long as you are not a stem cell transplant patient, see guidelines below), as long as you choose the restaurant carefully. Local health departments inspect restaurants to make sure that they are clean, and that they follow safe food practices.