A lacto-vegetarian diet includes dairy products but excludes eggs, ovo-vegetarianism includes eggs but not dairy, and lacto-ovo vegetarian diet includes both eggs and dairy products.

When my wife and I first went vegan in 1997 (after being lacto-ovo vegetarian for several years), we each lost 7 pounds in the first 7 days.

Going lacto-ovo vegetarian for 30 days was a lot easier than I expected - I can't say it was hard at all, and I never felt deprived.