<P> Only diets covered on Wikipedia are listed . </P> <P> A vegetarian diet is one which excludes meat . Vegetarians also avoid food containing by - products of animal slaughter, such as animal - derived rennet and gelatin . </P> <Ul> <Li> Fruitarian diet: A diet which predominantly consists of raw fruit . </Li> <Li> Lacto vegetarianism: A vegetarian diet that includes certain types of dairy, but excludes eggs and foods which contain animal rennet . A common diet among followers of several religions, including Hinduism, Sikhism and Jainism, based on the principle of Ahimsa (non-harming). </Li> <Li> Ovo vegetarianism: A vegetarian diet that includes eggs, but excludes dairy . </Li> <Li> Ovo - lacto vegetarianism: A vegetarian diet that includes eggs and dairy . </Li> <Li> Vegan diet: In addition to the abstentions of a vegetarian diet, vegans do not use any product produced by animals, such as eggs, dairy products, or honey . The vegan philosophy and lifestyle is broader than just the diet and also includes abstaining from using any products tested on animals and often campaigning for animal rights . </Li> </Ul> <Li> Fruitarian diet: A diet which predominantly consists of raw fruit . </Li>

What are the different types of vegetarian diets