Former Atomic Kitten singer Kerry Katona has been warned to quit smoking or else risk having her nipples fall off. Brian ocFadden’s ex-wife recently had surgery for her new documentary “Whole Again”. Kerry had a tummy tuck and a breast reduction from a 34GG to a 34DD. Her doctor warns, “”The risk of wound or healing problems with the skin or nipple is a risk for everyone. In smokers it can be worse because less oxygen reaches the tissue. I’ve never seen a nipple turn black and drop off, but it has happened. It’s a good scare tactic. I told Kerry.””