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Advantages of Gastric Bypass

The gastric bypass procedure offers exceptional weight loss potential and has been considered the gold standard in surgical weight loss for decades. It can also improve or resolve many of the most common obesity-related diseases.1

Weight Loss Potential

On average, a gastric bypass patient can expect to lose over 70% of their excess body weight. Particularly successful procedures may yield additional excess body weight loss. Patients may regain approximately 5%-10% of their body weight at some point after their weight has stabilized, but this is nothing to be concerned about. Gastric bypass patients tend to lose more excess body weight than other procedures with the exception of the Duodenal Switch.

Disease Resolution

The main purpose of bariatric surgery is to reduce or eliminate the diseases associated with obesity. To that end, the gastric bypass procedure works very well, improving or eliminating many of these diseases within days or weeks of surgery:

  • Excess Weight Loss: Over 60%1
  • Resolution of type-2 diabetes: Over 80%1
  • Improvement of High Cholesterol: Over 941

Advantages Specific to Gastric Bypass

  • Gastric bypass patients enjoy the fastest and greatest weight loss of any bariatric surgery procedure with the exception of the duodenal switch.
  • A smaller stomach pouch drastically limits the amount of food that can be eaten at one time, helping with portion control.
  • Some fertility issues associated with obesity can be resolved after surgery.2

It is important to remember that gastric bypass is a major surgery and comes with risks. Learn more about the risks of gastric bypass.


  1. Buchwald H, Avidor Y, Braunwald E, et al. Bariatric surgery. A systematic review and meta-analysis. JAMA. 2004;292:1724-1737.
  2. Eid GM, Cottam DR, Velcu LM, et al. Effective treatment of polycystic ovarian syndrome with roux-en-Y gastric bypass. Surg Obes Related Dis. 2005;2:77-80.

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