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title: Health: Weight Loss Surgery Lowers Risk for Type 2 Diabetes
description: Undergoing bariatric surgery significantly lowers an obese person's risk of develop Type 2 diabetes, a new study suggests
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author: Alexandra Sifferlin
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article:modified_time: 2026-02-21T11:10:47.866Z
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og:title: Weight Loss Surgery Lowers Risk for Type 2 Diabetes, Study Suggests
og:description: Obesity is known to be a major risk factor for the condition
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# Weight Loss Surgery Lowers Risk for Type 2 Diabetes, Study Suggests

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by 

[Alexandra Sifferlin](https://time.com/author/alexandra-sifferlin/)


## Alexandra Sifferlin


Nov 3, 2014 4:50 PM UTC

by 

[Alexandra Sifferlin](https://time.com/author/alexandra-sifferlin/)


## Alexandra Sifferlin


Nov 3, 2014 4:50 PM UTC

Undergoing bariatric surgery significantly lowers an obese person’s risk of develop Type 2 diabetes, [a new study suggests](http://www.thelancet.com/journals/landia/article/PIIS2213-8587%2814%2970214-1/fulltext).

Adding to [prior research](http://time.com/43681/gastric-bypass-surgery-highly-effective-in-treating-type-2-diabetes/) that has indicated weight loss surgery could help get rid of Type 2 diabetes, as obesity is known to be a major risk factor for the condition, the new study published in _The Lancet Diabetes & Endocrinology_ shows surgery can lower an individual’s risk before its onset.

Researchers looked at 2,100 obese adults who did not have diabetes and who had all underwent some form of weight loss surgery. They then matched the participants to the same number of obese adults who did not undergo surgery. After following up with the participants for seven years, they learned that the participants who underwent surgery had an 80% lower risk of developing Type 2 diabetes.

The findings are notable, but [in a corresponding editorial](http://www.thelancet.com/journals/landia/article/PIIS2213-8587%2814%2970218-9/fulltext), Dr. Jacques M Himpens of St. Pierre University Hospital in Brussels says there are holes in the research: “Unfortunately, despite best matching efforts,” he wrote, the patients and controls that were analyzed “differed widely in terms of medical monitoring.” For one, the participants who did not undergo weight loss surgery also did not go through other treatments for their diabetes. And, as Himpens suggests, it’s likely that weight loss in general—without surgery—could reduce risk for Type 2 diabetes risk.

The new findings add to the growing evidence that weight loss can greatly reduce Type 2 diabetes risk and symptoms, but the best ways to achieve that benefit still need further investigation.

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