The following is a bibliography of veganism and vegetarianism . This bibliography includes primary, secondary, and tertiary sources addressing the historical development, ethical foundations, health considerations, environmental impact, and cultural significance of vegan and vegetarian diets. Works listed may explore the philosophical and religious roots of abstaining from animal products, advocacy for animal rights and welfare, and the social movements associated with vegan and vegetarian lifestyles. Sources are drawn from a variety of academic disciplines, as well as popular and activist literature.