How It Works: In the Roux-en-Y gastric bypass, a small pouch (about the size of an egg) is created at the top of the stomach. This pouch holds food, while the rest of the stomach is stapled shut and separated from the pouch. The pouch is then connected directly to the lower part of the small intestine, allowing food to bypass a section of the intestines that normally absorbs calories.

OAGB is a newer type of gastric bypass that works similarly to the traditional Roux-en-Y but is simpler. In this procedure, a small stomach pouch is created, and a single connection is made to the small intestine. This can lead to effective weight loss and hormonal benefits while making the surgery quicker and potentially safer.

• Reduced Appetite: The small pouch limits how much food you can eat at one time, helping you feel full after smaller meals.
• Fewer Calories Absorbed: Because part of the intestine is bypassed, your body absorbs fewer calories from the food you eat. This can help you lose weight, but it’s important to take vitamin and mineral supplements after surgery to ensure you get the nutrients you need.
• Hormonal Changes: The surgery also changes hormone levels in your body. It reduces the production of ghrelin, the hormone that makes you feel hungry, while increasing hormones that promote feelings of fullness. This helps reduce appetite and supports weight loss.
• Improved Metabolism: Many people experience better blood sugar control and improved insulin sensitivity after surgery, which can help with conditions like type 2 diabetes.