I practise being a vegan and it's diet.
Is it like a vegetarian?
They abstain from the by products as well, milk and such.
Oh do vegans eat eggs?
Nope. No eggs or dairy or lard. It really limits your choices but animals shouldn't suffer.
Can I ask why you don't eat all those things? 
It's an animal rights advocacy for me.
Oh ok I respect that, does it cause you any health problems to limit diet like that?
No I get all I need to maintain and grow as a human and avoid disease or bad health.
Ok what else can you tell me about the choice to limit your diet?