Jill Roberts, 21, has lost 170 pounds in less than a year and a half. She succeeded in her weight loss goal with the help of weight loss surgery. She blamed her earlier eating problems on the disapproval of her dad (shown in the pic above), but now she feels this blame was misguided.

On the Oprah show yesterday, Jill talked about how she cried every day for three months after her surgery because she missed food. "Food was my life," she says. "Food was my best friend and I miss it." It will be interesting to see if Roberts can keep the weight off in the next few years.