Now that Oprah has once again vowed to get trim and healthy in the new year, let's take a look back at the daytime doyenne's lifelong struggle with fitness.

1988

After losing 67 pounds on a "liquid diet" that she would later admit amounted to nothing more than starving herself, Oprah was finally able to fit into a size 10 pair of Calvin Klein jeans she had desperately wanted. To celebrate, she wheeled out onto her talk show stage a wagon full of 67 pounds of pig fat. Two days after the show, a complacent Oprah could no longer fit into those jeans.

1992

By late 1990, Oprah had gained most of the 67 pounds back. And by 1992, she was well out of shape again.

1994

In 1994, Oprah, the recipient of two Daytime Emmys that year, was once again feeling and looking good. This time around, Oprah lost the weight in a healthy manner by training for and completing the Marine Corps Marathon.

1996

In 1996, Oprah wasn't as thin as she had been after the marathon, but she also wasn't as far gone as she'd been in the past. In order to head off any further weight gain, she hired personal trainer Bob Greene.

1997

Oprah and Greene, who claims to have started admonishing his family for using salt at the age of eight, would go on to write two books together. When the pair weren't writing, they were running, which kept Oprah healthy and lean for the rest of the 90s.

2000

Oprah's exercise regimen kept her weight relatively in check for years, though she would fluctuate slightly. Oprah show titles from 2000: "Explosive Children," "Take It Off," "Weight Loss Firsts," "Turn Your Health Around in 2000," "Why This Boy Was Raised a Girl."

2005

She looked great in 2005, the same year she aired an episode called "Dogs with Jobs." By 2006, she would find herself at a healthy, maintainable weight: 160 pounds.

2007

Alas, by 2007, the year Oprah opened a girl's school in South Africa, the pounds were creeping back.

2008

In 2008, Oprah hit an even 200 pounds. In a recent article in O magazine, she wrote that, before coming to terms with her latest weight gain, she felt like a "cow" and considered skipping appearances out of embarrassment. She added that she no longer wants to be thin, just healthy and strong.