Gastric Sleeve FAQ: 15 Questions About Weight Loss Surgery in Turkey

**What's the minimum BMI for gastric sleeve?** Standard: BMI 35+ (or 30+ with obesity-related comorbidities like type 2 diabetes, sleep apnea, or hypertension). Some Istanbul hospitals accept BMI 30+ without comorbidities — discuss with your surgeon. **How much weight will I lose?** Average: 55-65% of excess weight in the first 12 months. Example: if you're 50kg overweight, expect to lose 27-32kg in year one.

Weight loss slows after month 12 and stabilizes by month 18-24. **Can weight come back?** Yes — 15-20% of patients experience significant weight regain after 3-5 years. The sleeve can stretch over time if consistently overeaten. Long-term success requires permanent dietary changes, not just surgery. **Does gastric sleeve cure diabetes?** Type 2 diabetes remission occurs in 60-70% of sleeve patients (vs.

75-80% for gastric bypass). The hormonal changes from removing 80% of the stomach reduce insulin resistance. However, remission is not guaranteed and some patients need continued medication. See our sleeve vs bypass comparison.

**How long is the surgery?** 45-90 minutes laparoscopically (keyhole surgery). 4-5 small incisions (5-12mm each). General anesthesia. Hospital stay: 2-3 nights. **What's the diet after surgery?** Week 1-2: clear liquids only. Week 3-4: pureed foods. Week 5-8: soft foods. Month 3+: gradual return to normal foods in small portions.

Permanent changes: eat slowly, chew thoroughly, avoid carbonated drinks, no drinking during meals. **Will I need vitamin supplements forever?** Yes. Lifelong daily multivitamin + B12 is mandatory after gastric sleeve. Some patients also need iron and vitamin D supplementation.

Blood tests every 3-6 months for the first year, then annually. **What about excess skin after weight loss?** Significant weight loss (30kg+) often leaves loose skin, particularly on the abdomen, arms, and thighs. Body contouring surgery (tummy tuck, arm lift) is possible after weight has stabilized (12-18 months post-sleeve).

Some patients combine bariatric and body contouring trips to Istanbul. **Can I drink alcohol after sleeve?** Alcohol effects are intensified after sleeve — faster absorption, lower tolerance, higher blood alcohol levels from less liquid. Most surgeons recommend avoiding alcohol for 6+ months and then consuming very cautiously.

For pricing, see our gastric sleeve cost guide and Istanbul guide. Get your assessment.