"I had the procedure done at the end of June and since then -- I was 300 pounds then -- this morning I was 224, so that's 76 pounds that I've lost since then," Everett said, referring to the hypnosis procedure.
"In July I was using a cane and I had a knee brace," she said, adding that she could not have walked three miles at the time.
By December, she was able to not only walk but run and now, she has lost 100 pounds. "Now I can run three miles," she said.
This promise of an inexpensive, re-programming of the brain to eliminate sugar cravings could appeal to many of the 60 million Americans who are classified as obese. To the skeptics of gastric bypass hypnosis, Greenberg said, "Many of us underestimate the real power of the mind -- what we're capable of."
Dr. David Treen, a leading bariatric surgeon in New Orleans, performs a radical stomach surgery known as sleeve gastrectomy, which removes 85 percent of the stomach and a hormone called Ghrelin, which stimulates appetite.
Treen said he thought long term success with hypnosis seems "unrealistic."
"The reality is that there are no studies which demonstrate that kind of weight loss with hypnosis alone," he said.
Undaunted by skepticism, DeLong has lost 23 pounds in eight weeks with the hypnosis sessions and exercise, and she plans to continue her transformation.
"It is extreme but it's a lifestyle choice and I'm confident it's going to work," she said.