The actress lost almost 50 pounds, and she did it all on national TV. Valerie Bertinelli speaks out about how she lost it and what she does to keep it off. Plus, she's posing in a bikini!

She revealed it all on The Oprah Show just two years ago. Now, she's opening up about why she fell off the weight loss wagon.

These stories got the biggest reactions--good and bad--over the past decade. Read them, then tell us what you think!

The American Library Association received an Angel Network Award in honor of Oprah's Book Club.

Four years ago, when Oprah managed to get down to a trim and fit 160 pounds, she thought she'd hit on a foolproof formula for permanent weight loss. Then life; in the form of a thyroid problem and a killer schedule; intervened.