Is being naturally a size zero without diet or exercise possible?

Maybe, if they have a high metabolism.

My daughter has a size 0 body, and she comes by it naturally. She eats normally, complete w/occasional treats, and she exercises only moderately. I think it is the metabolism being high--other people in my family have this body type too(alas, not me).

Of course it's possible. It probably happens more often than you think.

One of my sister's friends eats like a pig, but has a very fast metabolism. She is a natural size zero. I wish I was like her. Oh well, I'm a natural size two, so I can't really talk.

Yes it probably is. My friend is a UK size 6 or 8. I am a bit odd I am 34, 27, 39 so a 14 top, 14 waist but about a 16 bottom which makes life just a bit of a problem clothes wise.

my 33 tear old mom is a size zero but she is just naturally and married. but it is very possible. to be honest, im 11 and im a size zero too

Yes. If they're nine. Or very, very sick.

i am size zero....and believe me... it's naturally... most of people around me get complex and start dieting
....

nice question

I'm naturally size 0. I have a very high motablism and I dont gain weight very much.