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A 45-year-old member asked:

How long will i extend my lifespan if i have bariatric surgery?

4 doctor answers8 doctors weighed in
Dr. Leena Khaitan
General Surgery 27 years experience
Several years: We know by being obese a person can shorten their lifespan by over 20 years. Successful weight loss surgery can reverse that.
Dr. Joseph Kuhn
A Verified Doctoranswered
38 years experience
Years and quality: Additional years depends on bmi and current age. If 20 years old now and bmi over 50 (about 150lb overweight) then can expect a 20 year life prolongation. But quality of life is also very much improved.
Dr. Terry Simpson
General Surgery 36 years experience
None: No lifespan increase but better quality of life.
Dr. Dean Giannone
Internal Medicine 26 years experience
A good amount.: Although I'm sure the exact data for which you're looking isn't out there, we know that obesity shortens the lifespan so we could infer that losing weight, surgically or otherwise, will reduce this shortening, if you will.

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Last updated Dec 17, 2014
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