On his 51st and final appearance on The Oprah Show, Oprah's trainer and fitness expert, Bob Greene, shares his best advice for losing weight, getting healthy and staying that way.

After a very public and controversial weight loss, Star Jones opens up her gastric bypass surgery, why she chose to keep it quiet and her co-hosts on The View.

Marie Osmond opens up about her lifelong weight struggle and finally finding success with NutriSystem.

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!

There are now other options for those interested in gastric bypass surgery. O, The Oprah Magazine's Sara Reistad-Long reports on a handful of promising, and less invasive, alternatives to bariatric surgery.