This document provides an overview of vegetarianism including definitions, demographics, reasons for being vegetarian, companies that produce vegetarian alternatives, non-vegetarian products to avoid, and references. It defines a vegetarian as someone who does not eat meat, fish, or slaughter by-products and notes that 2% of Britain's population are vegetarians. Reasons for becoming vegetarian include health concerns, environmental concerns, ethical concerns about animal welfare, religious beliefs, and a dislike of meat. It discusses both vegetarian and non-vegetarian food products and companies that produce vegetarian alternatives like Quorn and Linda McCartney Foods.