The surgery itself appeared to carry little short-term risk. The death rate in the year after surgery (0.53 percent) was nearly identical to that of people who did not get gastric bypass, the researchers said.
Still, there were some longer-term risks associated with the rapid weight loss, including a slight hike in the odds of death by injury, and an increase in psychological illnesses. "There are some studies showing that a number of folks after bariatric surgery go on to develop certain chemical dependencies," Adams noted.
That means that in-depth consultation with a doctor is crucial to make sure that weight-loss surgery is right for you, Adams added.
For many severely obese people, weight-loss surgery will be the correct choice -- and earlier is often better, the other experts said.
"It virtually eliminates your risk of getting diabetes if you haven't already got it -- and if you are morbidly obese, eventually you will get diabetes," said Fielding.
Fielding speaks from personal experience: Besides being a bariatric surgeon, he also underwent the procedure eight years ago.
"I was about 310 to 315 pounds at the time, and I'm now 210," he said.
Before the surgery, he added, "I was on 11 different drugs, I had all of these diseases except diabetes" -- and diabetes was not far away.
Fielding noted that the recent disclosure of weight-loss surgeries by such celebrities as Today show weatherman Al Roker and singer Carnie Wilson is helping ease the stigma surrounding the operation.
And just last Friday, lawyer and TV talk-show host Star Jones disclosed that she had undergone weight-loss surgery four years ago, although she was reticent to say so at the time. She told CNN's Larry King that she has dropped half of her weight post-surgery and maintained that weight loss.
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