T. Colin Campbell claims responsibility for coining the term<unk> " to help present his research on<unk>  at the National Institutes of Health in 1980. He defined it as "a low fat, high fibre, vegetable-based<unk>  that focused on health and not ethics". Vegan author Ellen Jaffe Jones wrote about the origins of the term in a 2011 interview:"I taught cooking classes for the national non-profit, Physicians Committee for Responsible Medicine, and during that time, the phrase<unk> ' came to be used as a euphemism for vegan eating, or "the 'v' word. It was developed to take the emphasis off the word 'vegan', because some associated it with being too extreme a position, sometimes<unk>  exclusively in animal rights versus a health rationale." Some sources use the phrase<unk> " to refer to<unk> s including varying degrees of animal products, for example defining<unk> s" as<unk> s that "include generous amounts of<unk>  foods and limited amounts of animal foods" and stating that "The American Institute for Cancer Research and the World Cancer Research Fund call for choosing predominantly<unk> s rich in a variety of vegetables and fruits, legumes, and minimally processed starchy staple foods and limiting red meat consumption, if red meat is eaten at all". Others draw a distinction between<unk><unk> " and<unk> -only". A<unk> " may be defined as "consisting largely or solely of vegetables, grains, pulses, or other foods derived from<unk> s, rather than animal products" or as the practice of consuming<unk> -sourced foods that are minimally processed. In various sources,<unk> " has been used to refer to: * Veganism:<unk>  of vegetables, legumes, fruit, grains, nuts, and seeds, but no food from animal sources. * Vegetarianism:<unk>  of vegetables, legumes, fruit, nuts, and grains, that may include eggs and dairy, but no meat. * Ovo-lacto vegetarianism: includes dairy and eggs. *Ovo vegetarianism: includes eggs but no dairy. *Lacto vegetarianism: includes dairy but no eggs. * Semi-vegetarianism: mostly vegetarian<unk>  with occasional inclusion of meat or poultry. *Pescetarianism: mostly vegetarian<unk>  with the incorporation of seafood. Moderate amounts of dairy and/or eggs may or may not be included.
Plant-based diet
Feingold diet
Low-fiber/low-residue diet
Low-FODMAP diet
Stillman diet
Rice diet
Specific carbohydrate diet
Cotton ball diet