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What is the likelihood of having dumping syndrome after surgery?

The likelihood of getting dumping syndrome after surgery varies by the type of surgery you have.

  • For gastric sleeve: 2 to 25% chance of getting dumping syndrome.
  • For gastric bypass: 15 to 70% chance of getting dumping syndrome.

Dumping syndrome is most commonly caused by drinking within 30 minutes of eating and/or eating fried foods, pasta, breads, and alcohol. Learn more about the types of dumping syndrome and ways to manage and prevent it on the Complications and Side Effects page.

Source: Ahmad, A., Kornrich, D. B., Krasner, H., Eckardt, S., Ahmad, Z., Braslow, A., & Broggelwirth, B. (2019). Prevalence of dumping syndrome after laparoscopic sleeve gastrectomy and comparison with laparoscopic Roux-en-Y gastric bypass. Obesity surgery, 29(5), 1506-1513.

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