Gastric Sleeve Surgery: What to Expect Before, During & After

What Is Gastric Sleeve Surgery?

Sleeve gastrectomy (gastric sleeve) removes approximately 80% of the stomach, leaving a banana-shaped "sleeve." This dramatically reduces hunger hormones (ghrelin) and limits food intake, leading to significant and sustained weight loss.

Am I a Candidate?

Gastric sleeve is typically recommended for patients with a BMI of 35 or higher, or BMI 30+ with obesity-related conditions such as type 2 diabetes, hypertension, or sleep apnea. A thorough pre-operative evaluation by a bariatric team is essential.

The Pre-Op Liquid Diet

Most surgeons require a 2–4 week liquid diet before surgery. This shrinks the liver, making the laparoscopic procedure safer. Stick to protein shakes, broth, and water — no solid food.

The Procedure Itself

Gastric sleeve is performed laparoscopically (keyhole surgery) under general anesthesia. The operation takes 60–90 minutes. You'll typically stay 2–3 nights in hospital.

Post-Op Diet Progression

• Week 1–2: Clear liquids only
• Week 3–4: Full liquids (protein shakes, yogurt, soup)
• Week 5–6: Soft, pureed foods
• Month 2+: Gradual return to solid foods

Expected Weight Loss

Most patients lose 60–70% of their excess body weight within 12–18 months. Long-term success depends on lifestyle changes — regular exercise, protein-rich diet, and avoiding high-sugar foods.

Why Turkey for Bariatric Surgery?

Turkey's bariatric centers combine internationally trained surgeons with all-inclusive packages (surgery, hospital stay, transfers, follow-up) at a fraction of Western European prices. Packages typically range from €3,500 to €5,500.