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What causes weight regain after Roux-en-Y gastric bypass surgery?

Recent studies show that about 49% of people regain some weight after gastric bypass surgery, with 42% specifically after Roux-en-Y procedures. While initial weight loss can be significant (around 70% of excess weight in the first two years), long-term Show Full Answer

What causes weight regain after Roux-en-Y gastric bypass surgery?

Recent studies show that about 49% of people regain some weight after gastric bypass surgery, with 42% specifically after Roux-en-Y procedures. While initial weight loss can be significant (around 70% of excess weight in the first two years), long-term success averages around 50% of excess weight loss. Common factors that contribute to weight regain include:

• Stretched stomach pouch from eating large portions (occurs in 28% of cases)
• Poor eating habits like frequent snacking or grazing
• Consuming high-calorie foods and sugary drinks
• Hormonal changes, particularly in ghrelin (the "hunger hormone")
• Returning to larger portion sizes
• Drinking high-calorie beverages including alcohol

The good news is that maintaining weight loss is possible with consistent follow-up care, healthy eating habits, and regular physical activity.

 AI-generated responses are not a substitute for medical advice. These services are not intended to diagnose, treat, or cure any condition or disease. Always ask your doctor about specific health concerns.

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