A vegetarian is defined as someone who does not eat meat or meat products. Vegetarianism has roots in religions like Hinduism, Buddhism, and Jainism that emphasize nonviolence towards animals. Some famous historical vegetarians include Leonardo Da Vinci. Statistics show the number of vegetarian children and young adults is increasing in the UK. Common reasons for becoming vegetarian include health concerns, ethics around animal treatment, environmental impacts, and religious beliefs. Major vegetarian food brands include Quorn, Linda McCartney Foods, and VeggieLand. Vegetarians must carefully check ingredients to avoid animal products hidden in foods.