Oprah says she's learned over the years that setting a specific time limit on weight loss can hurt the end result. "I want you to do in in your own time," Oprah tells Kirstie. "Do it in a way that's going to be good for you. I don't want you on national television setting yourself up for November. ... I know what happens when you set that goal for yourself. Then you go home and eat for a month trying to make yourself feel better about what you just committed [to]."
The World's Best Dieter gets a handle on his weight
Valerie Bertinelli wins the weight loss battle
Star Jones opens up about gastric bypass surgery