This document defines a vegetarian as someone who does not eat meat, poultry, fish or other animal products. It provides statistics on the percentage of vegetarians in different countries, ranging from 31% in India to 2% in France. Reasons for becoming vegetarian include health concerns, environmental or ethical reasons. The document discusses companies that target the vegetarian market, like Quorn and supermarkets offering vegetarian products. It notes that some foods have hidden non-vegetarian ingredients that must be avoided, like gelatin in Percy Pigs candy or cochineal food dye.