I'm thinking about becoming an ovo vegetarian. Can you tell me a few things about that diet?
Yeah no problem, ovo vegetarianism is a type that allows the consumption of eggs but not dairy products 
Oh no! So no milk or cheese? I don't know if I can do that! Is it considered to be a healthy diet?
Yeah can't have anything like that !  ANother fact is the ovo come form the altin word for egg
Oh neat! What else can you tell me about an ovo-vegetarian diet?
Concerns with ovo is the practice of keeping a cow constantly pregnant in order for her to lactate and the slaughter of unwanted male calves
Yes, it breaks my heart thinking about the suffering those animals experience.
calves. Other concerns include the standard practice of separating the mother from her calf and denying the calf its natural source of milk. This contrasts with the industrial practices surrounding egg-laying hens, which produce eggs for human consumption without being fertilized. Ovo-vegetarians often prefer free-range eggs, that is, those produced by uncaged hens. Many ovo-vegetarians refuse to eat fertilized eggs, with balut being an extreme example where the egg has developed.
Some vegetarians are lactose intolerant and have a casein allergy,
Ovo-lacto vegetarianism
An ovo-lacto vegetarian or lacto-ovo vegetarian is a vegetarian who consumes some animal products, such as eggs and dairy. Unlike pescatarians, they do not consume fish or other seafood. A typical ovo-lacto vegetarian diet may include fruits, vegetables, grains, nuts, seeds, herbs, roots, fungi, milk, cheese, yogurt, kefir, and eggs.
Etymology.
The terminology stems from the Latin "" meaning "milk" (as in 'lactation'