Lacto vegetarianism is a type of diet that excludes meat, fish, poultry, and eggs, but includes dairy products. However, there are many synonyms used to describe this diet. One common alternative term is ovo-lacto vegetarianism, which includes eggs in addition to dairy products. Another is dairy vegetarianism, which emphasizes the use of dairy products as the main source of protein. Vegetarianism with dairy is also a popular synonym for lacto vegetarianism. Other variations of this diet include lacto-ovo-pescatarianism, which includes fish, as well as the less common options of lacto-pescatarianism or pescatarianism with dairy. No matter the synonym used, the message remains clear: lacto vegetarianism is a healthy and sustainable way to eat.