Kirstie Alley Diet and Other Amazing Celebrity Weight Loss [PHOTOS]

Stars make enough money to either have gastric bypass surgeries or get liposuction in various parts of their bodies. They also have major access to personal trainers and nutritionists who can have them burn those calories the old fashion way.

In September, actress Kirstie Alley, 60, walked the 2011 New York Fashion Week catwalk in a frame that was 100 pounds less than what it used to be.

Alley revealed that she went from a size 14 to a size 6.

"NO surgery, NO flippin lasers, NO barfing, NO starving . . . Jeez . . . my products, organic food, dance. end," Alley wrote on Twitter.

Alley created Organic Liaison, a weight loss program, with the help of scientists and nutritionists. According to its Web site, Organic Liaison promotes healthy weight loss solutions and long-term control.

Recents reports are that Alley has started regaining weight. But she looks just about the same to us.

Alley's friend, Kelly Preston, also dropped the baby weight she gained in the months following the birth of her son, Benjamin Travolta, back in November 2010.

Preston, 49, told People that she turned to Alley's weight-loss program to slim down. She is now the spokeswoman for Alley's program.

"It's pretty much the most genius thing ever," Preston has said of the program.

However, they have chosen to slim down, we've compiled photos of some of the most amazing celebrity weight loss we have ever seen.

Start the slideshow to see the photos. If there are any others you think should be added to the list, let us known in the comments box below.

Kirstie Alley at the Zang Toi Spring/Summer 2012 show during New York Fashion Week September 13, 2011. She walked the runway after losing 100 pounds.

Prior to her weight loss, Alley used to have a much curvier figure as seen here when she arrived for the cable network's TCA press tour party in honour of its upcoming 2005 original programming at Universal Studios in Los Angeles January 12, 2005.

Actors Kelly Preston (L) reportedly lost 39 pounds on Kirstie Alley's Organic Liaison. She is seen her arriving with husband John Travolta arrive at the Academy of Motion Picture Arts and Sciences' 2011 Governors Awards in Hollywood, California November 12, 2011.

A pregnant Kelly Preston arrives at the gala presentation for the film 'Casino Jack' during the 35th Toronto International Film Festival, September 16, 2010. She lost much of the weight she gained after having her son last year,

Jennifer Hudson recently went from a size 16 to a size 4 while on Weight Watchers. She is seen here applauding next to Chicago Mayor Rahm Emanuel at a Democratic National Committee fundraiser at the Aragon Entertainment Center in Chicago, August 3, 2011.

Prior to her weight loss with Weight Watchers, a curvier Jennifer Hudson is seen here accepting the award for "Best New Artist" at the 2007 BET Awards in Los Angeles, California June 26, 2007.

When Kelly Osbourne signed up for "Dancing with the Stars"she was having a really difficult time rehearsing. She then reportedly changed up her diet and started exercising. Osbourne managed drop to a size 2.

Jonah Hill, creator, executive producer and voice character of the new animated series "Allen Gregory" is seen here speaking during a panel session at the FOX Summer TCA Press Tour in Beverly Hills, California August 5, 2011. He recently dropped 30 pounds for a movie role in the remake of "21 Jump Street."

Actress Raven Symone revealed a 35 pound slimmer figure this year after telling the media that stress caused her weight gain.
When talk show host Wendy Williams asked Symone about her weight loss secret, the former That's So Raven star replied "less stress."
Symone told talk show host Wendy Williams that "I stopped stressing. You have to realize at 15, there was a whole entire show I had on my shoulders. It was a very big cast and crew and if you're sick for a day, people lose money and that's a problem. [It wasn't] just over eating because I've actually been eating the same. I keep a little bit more smaller portions because I learned that your body has to get rid of that stress some way. Some people break-out, some people lose their hair, some lose weight, some people gain weight, my body just reacted a certain kind of way."

Jersey Shore star Nicole 'Snooki' Polizzi revealed a newly slim figure back in October after losing 18 pounds. The once curvy brunette tweeted that she used the diet pills Zantrex to achieve her weight loss.