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How Does Gastric Sleeve Surgery Work?
How Does Gastric Sleeve Surgery Work?
Gastric sleeve surgery works by reducing the size of the stomach and altering appetite-related hormones. This combination helps patients eat less, feel full sooner, and maintain long-term weight loss.
Stomach Size Reduction
During gastric sleeve surgery, approximately 75–80% of the stomach is permanently removed. The remaining stomach is shaped into a narrow tube, which significantly limits the amount of food that can be consumed at one time.
With a smaller stomach capacity, patients reach a feeling of fullness much faster and naturally reduce portion sizes.
Hormonal Changes and Appetite Control
An important part of how gastric sleeve surgery works is its effect on appetite hormones. The removed portion of the stomach contains cells that produce ghrelin, commonly known as the hunger hormone.
After surgery, ghrelin levels decrease significantly, leading to reduced appetite and fewer hunger cravings. This hormonal change plays a key role in supporting sustained weight loss.
Impact on Eating Habits
Following gastric sleeve surgery, patients not only eat smaller portions but also develop healthier eating behaviors. Eating slowly, chewing thoroughly, and choosing nutrient-dense foods become essential parts of daily life.
Digestion and Nutrient Absorption
Unlike some other bariatric procedures, gastric sleeve surgery does not involve bypassing the intestines. This means digestion and nutrient absorption continue through their natural pathways.
As a result, the risk of severe malabsorption is lower compared to more complex bariatric surgeries.
Why Gastric Sleeve Surgery Is Effective Long Term
The combination of stomach restriction, hormonal regulation, and lifestyle changes makes gastric sleeve surgery a highly effective solution for long-term weight management.
When supported by regular medical and dietary follow-up, patients can achieve sustainable weight loss and significant improvements in overall health.
