Table 1.

Classification of Various Types of Diets

Diet	Definition
Vegan	Excludes all animal products
WFPB	Excludes heavily processed foods while focusing on foods in their most natural form
Raw vegan	Excludes all animal products, along with products that cannot be consumed uncooked or raw
Lacto-ovo-vegetarian	Excludes all forms of meat, but permits other animal products (dairy, eggs, honey etc.)
Lacto-vegetarian	Excludes all forms of meat and eggs, but permits dairy products, honey etc.
Ovo-vegetarian	Excludes all forms of meat and dairy products, but permits eggs, honey etc.
Pescatarian	Excludes meat, but permits fish, dairy products, eggs, honey etc.
Semi-vegetarian/flexitarian	Switches between vegetarian and meat-based diets; consists mainly of a vegetarian diet, with a minimal intake of meat
Omnivore	Does not exclude any animal products

Abbreviation: WFPB, whole food plant-based.