Chris Christie secretly underwent weight-loss surgery earlier this year, the New Jersey governor said Tuesday.

Christie (R) initially disclosed that he underwent the surgery, known as gastric band surgery, in an interview published Tuesday by the New York Post.

He said at press conference Tuesday afternoon that the procedure was relatively easy and that he maintained an active schedule afterward, despite some soreness. He said he did not want to become a role model for overweight people and emphasized the personal nature of his struggle with obesity.