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What are the cons of gastric bypass surgery?

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The Cons:

  • Gastric bypass surgery is riskier and is associated with more complications.
  • The surgery may result in vitamin and mineral deficiencies.
  • The surgery may result in dumping syndrome, which occurs when food moves too quickly through the stomach and intestines. Dumping syndrome can cause shaking, sweating, dizziness, nausea, and severe diarrhea.
  • Gastric bypass is generally considered irreversible. The surgery permanently changes how your body digests food.

SOURCES: News release, Allergan. Sjöström, L. , December 2004. WebMD Medical Reference: "What to Expect After Weight Loss Surgery;" "Your Options in Weight Loss Surgery: Making the Choice;" "Preparing for Weight Loss Surgery;" "Life After Weight Loss Surgery;" and "Is Weight Loss Surgery for You?"


New England Journal of Medicine

American Society for Metabolic and Bariatric Surgery: "Bariatric Surgery Procedures."

Cleveland Clinic. 

National Institute of Diabetes and Digestive and Kidney Diseases.

Reviewed by Carol DerSarkissian on February 7, 2019

SOURCES: News release, Allergan. Sjöström, L. , December 2004. WebMD Medical Reference: "What to Expect After Weight Loss Surgery;" "Your Options in Weight Loss Surgery: Making the Choice;" "Preparing for Weight Loss Surgery;" "Life After Weight Loss Surgery;" and "Is Weight Loss Surgery for You?"


New England Journal of Medicine

American Society for Metabolic and Bariatric Surgery: "Bariatric Surgery Procedures."

Cleveland Clinic. 

National Institute of Diabetes and Digestive and Kidney Diseases.

Reviewed by Carol DerSarkissian on February 7, 2019

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What are typical risks associated with weight loss surgery?

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