Bariatric Surgery Turkey — Metabolic Surgery Istanbul from £1,925
Bariatric surgery at MedProper Istanbul. Sleeve, bypass, balloon, revision from £1,925 all-inclusive. JCI hospital, IFSO surgeons.
Is it safe?
Your hospital holds the same JCI accreditation as Cleveland Clinic and Johns Hopkins. Verified by TEMOS for international patient safety.
Will the price change?
Your price is locked before you book. Surgery, hospital, hotel, transfers, aftercare — one number, no extras.
What if something goes wrong?
Mandatory insurance required by Turkish law. If a revision is needed — flights, hospital, surgeon — covered. You never pay twice.
Who's my surgeon?
Confirmed before you pay. Full credentials, specialisation, and patient results shared upfront. No last-minute switch.
What happens after I fly home?
24/7 WhatsApp with your coordinator. Scheduled video check-ups with your surgeon. 12 months, not 12 days.
What Is Bariatric Surgery?
Bariatric surgery — from the Greek baros (weight) and iatrikos (medicine) — is the branch of surgery that treats severe obesity and its associated metabolic conditions. Unlike cosmetic surgery, bariatric surgery is a medically indicated intervention for a chronic disease, supported by decades of clinical evidence and endorsed by every major medical organisation worldwide.
The first bariatric procedures were performed in the 1950s. The laparoscopic revolution of the 1990s transformed the field, reducing complication rates and recovery times dramatically. Today, over 600,000 bariatric procedures are performed annually worldwide, and the International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO) recognises bariatric surgery as the single most effective long-term treatment for severe obesity.
A 2022 meta-analysis published in The Lancet confirmed that bariatric surgery produces significantly greater and more sustained weight loss than any non-surgical intervention — including intensive lifestyle programmes, pharmacotherapy, and the newest GLP-1 receptor agonists. Surgery also delivers superior rates of Type 2 diabetes remission, cardiovascular risk reduction, and overall mortality improvement.
At MedProper Istanbul, we perform the full range of bariatric procedures in a JCI-accredited hospital, with IFSO-member surgeons and all-inclusive packages starting from £1,275.
The Science Behind Bariatric Surgery
Bariatric surgery is not simply about making the stomach smaller. Modern research has revealed a complex interplay of hormonal, neurological, and metabolic changes that explain why surgery succeeds where diets fail.
Why Diets Fail Long-Term
When you lose weight through calorie restriction, your body responds with a coordinated counter-attack known as metabolic adaptation. Resting metabolic rate decreases, hunger hormones (ghrelin) increase, satiety hormones (leptin, GLP-1, PYY) decrease, and your brain's reward system intensifies cravings for high-calorie foods. This "set point" defence mechanism means that 80-95% of patients who lose weight through diet alone regain it within five years.
How Bariatric Surgery Overcomes These Defences
Related Treatments
Popular Combination Packages
Frequently Asked Questions (15)
What is bariatric surgery?
Bariatric surgery is a group of surgical procedures that treat severe obesity by reducing stomach capacity, altering digestive hormones, or both. The term comes from the Greek baros (weight). It is a medically indicated treatment for a chronic disease, not cosmetic surgery. Procedures include gastric sleeve, gastric bypass, gastric balloon, and revisional surgery.
How much does bariatric surgery cost in Turkey?
At MedProper Istanbul, bariatric surgery starts from £1,275 / €1,490 for a gastric balloon and from £1,925 / €2,250 for a gastric sleeve. Gastric bypass starts from £2,695 / €3,150. All prices are all-inclusive with no hidden charges.
Is bariatric surgery safe in Turkey?
Yes, when performed at an accredited centre by experienced surgeons. MedProper operates in a JCI-accredited hospital with Level 3 ICU, IFSO-member surgeons, and a dual leak test protocol. The mortality rate for gastric sleeve at experienced centres is 0.08-0.19%.
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Restriction: Reducing stomach volume from approximately 1 litre to 100-150 ml (sleeve) or 30 ml (bypass) physically limits food intake.
Hormonal restructuring: Removing or bypassing the stomach fundus reduces ghrelin (the hunger hormone) by 60-70%. Simultaneously, GLP-1 and PYY (satiety hormones) increase significantly, particularly after bypass procedures.
Bile acid changes: Bariatric surgery alters bile acid signalling, which independently improves insulin sensitivity and glucose metabolism — explaining why diabetes remission often occurs within days of surgery, before significant weight loss.
Gut microbiome remodelling: Surgery shifts the composition of intestinal bacteria toward profiles associated with leanness and improved metabolic health.
These mechanisms explain why bariatric surgery produces durable weight loss maintained at 10+ years, while non-surgical interventions almost universally fail to maintain results beyond 2-3 years.
Bariatric Procedures at MedProper Istanbul
Sleeve Gastrectomy (Gastric Sleeve)
The most commonly performed bariatric operation worldwide, representing approximately 55% of all procedures. The surgeon removes 75-80% of the stomach laparoscopically through 4-5 small incisions, leaving a narrow tube-shaped sleeve with a capacity of 100-150 ml.
Duration: 45-75 minutes under general anaesthesia
Hospital stay: 2-4 nights
Expected weight loss: 60-70% of excess weight in 12-18 months
MedProper price: from £1,925 / €2,250 all-inclusive
Best for: BMI 35-45 without severe gastroesophageal reflux.
Roux-en-Y Gastric Bypass
The gold standard for metabolic surgery. A small stomach pouch (approximately 30 ml) is created and connected directly to the jejunum, bypassing the majority of the stomach and the duodenum. The dual mechanism — restriction plus controlled malabsorption — produces the highest rates of Type 2 diabetes remission among all bariatric procedures.
Duration: 90-150 minutes
Hospital stay: 3-5 nights
Expected weight loss: 65-75% of excess weight in 12-18 months
Type 2 diabetes remission: 80%+ (the highest of any bariatric procedure)
GORD resolution: 90%+
MedProper price: from £2,695 / €3,150 all-inclusive
Best for: BMI over 45, poorly controlled Type 2 diabetes, or chronic acid reflux.
Mini Gastric Bypass (One-Anastomosis Gastric Bypass)
A simplified version of Roux-en-Y with a single intestinal connection rather than two. Creates a longer, tubular stomach pouch connected to a loop of small intestine approximately 200 cm from the ligament of Treitz. Now representing approximately 30% of all bypass procedures globally.
Duration: 60-90 minutes
Hospital stay: 3-4 nights
Expected weight loss: 65-75% of excess weight
MedProper price: from £2,695 / €3,150 all-inclusive
Best for: BMI 40+ or revision patients seeking bypass with shorter surgical time.
Intragastric Balloon
A non-surgical option. A silicone balloon is placed endoscopically (through the mouth, no incisions) into the stomach under light sedation and filled with saline. The balloon occupies space and creates early satiety. Placed for 6-12 months, then removed endoscopically.
Duration: 15-20 minutes under light sedation
Hospital stay: day case (no overnight stay required)
Expected weight loss: 10-15% of total body weight over 6 months
Fully reversible: yes
MedProper price: from £1,275 / €1,490 all-inclusive
Best for: BMI 27-35. Patients who prefer a non-surgical, fully reversible option.
Revisional Bariatric Surgery
Published data in Surgery for Obesity and Related Diseases (SOARD) indicates that 15-25% of bariatric patients require a revisional procedure within ten years. Common reasons include insufficient initial weight loss, weight regain after initial success, sleeve dilation, or chronic GORD following sleeve gastrectomy.
MedProper offers sleeve-to-bypass conversion and re-sleeve procedures, performed by bariatric surgeons with extensive revision experience.
MedProper price: from £2,520 / €2,950 all-inclusive
Bariatric Surgery Turkey Cost 2026
Procedure
MedProper (GBP)
MedProper (EUR)
UK Private
USA Private
You Save
Gastric Sleeve
from £1,925
from €2,250
£5,000-£9,000
$15,000-$25,000
up to 90%
Gastric Bypass (Roux-en-Y)
from £2,695
from €3,150
£8,000-£12,000
$20,000-$35,000
up to 90%
Banded Sleeve
from £2,350
from €2,750
£6,500-£10,000
$18,000-$28,000
up to 89%
Gastric Balloon
from £1,275
from €1,490
£3,000-£5,000
$6,000-$9,000
up to 82%
Gastric Revision
from £2,520
from €2,950
£12,000-£18,000
$18,000-$28,000
up to 86%
All MedProper prices are all-inclusive: surgeon fee, hospital stay, hotel, VIP transfers, pre-operative tests, post-operative medications, vitamin supplements, dietitian consultation, and 12-month online aftercare. There are no hidden charges.
Clinical Outcomes and Evidence
Bariatric surgery is one of the most thoroughly studied surgical interventions in medicine. Key evidence:
Weight Loss
Gastric sleeve: 60-70% excess weight loss at 12-18 months; 51-54% maintained at 10 years (Obesity Surgery, 2023)
Gastric bypass: 65-75% excess weight loss at 12-18 months; 55-60% maintained at 10 years
Gastric balloon: 10-15% total body weight loss over 6 months
Disease Resolution
Condition
Sleeve Resolution
Bypass Resolution
Type 2 diabetes
~60% remission
80%+ remission
Hypertension
60-70% resolution
65-75% resolution
Obstructive sleep apnoea
80-85% resolution
80-85% resolution
GORD (acid reflux)
May worsen (15-20%)
90%+ resolution
Non-alcoholic fatty liver disease
Significant improvement
Significant improvement
Dyslipidaemia
60-70% improvement
70-80% improvement
Mortality
A 2024 meta-analysis in The Lancet demonstrated that bariatric surgery reduces all-cause mortality by 50-70% in patients with severe obesity over a 10-year follow-up period. The survival benefit is particularly pronounced for patients with Type 2 diabetes and cardiovascular risk factors.
Fertility
Bariatric surgery significantly improves fertility in women with polycystic ovary syndrome (PCOS). Studies show normalisation of menstrual cycles in 70-80% of patients and increased natural conception rates.
BMI Eligibility: NHS vs International Guidelines
Criteria
NHS (NICE CG189)
IFSO (MedProper)
Minimum BMI for surgery
40 (or 35 with comorbidities)
35 (or 30 with comorbidities)
Minimum BMI for balloon
Not routinely offered
27
Pre-surgery programme
6-24 months Tier 3
2-4 week liquid diet
Average waiting time
2-3 years
2-4 weeks
Annual UK procedures
~6,000
No limit
Eligible but untreated (England)
~2.9 million
N/A
Why Turkey for Bariatric Surgery?
Turkey is the world's third-largest medical tourism destination, and bariatric surgery is one of the most commonly performed procedures for international patients:
72 JCI-accredited hospitals — more than any other European country
50,000+ bariatric procedures per year — giving Turkish surgeons exceptionally high case volumes
Cost: 60-90% less than UK and USA for equivalent or superior quality
Direct flights from over 100 cities worldwide (Istanbul is 3.5 hours from London)
Turkish Ministry of Health mandatory complication insurance for all international patients
No waiting lists — consultation to surgery in 2-4 weeks
MedProper Bariatric Safety Protocols
JCI + TEMOS dual accreditation — the strictest international healthcare quality standards
Named surgeon guarantee — your surgeon is confirmed before booking
IFSO-member bariatric team — specialist training in laparoscopic bariatric procedures
Dual leak test protocol — intraoperative test during surgery plus post-operative contrast swallow on day 1-2
Level 3 intensive care on-site — 450-bed hospital, 18 operating theatres, 24-hour medical staffing
Prophylactic DVT protocol — compression devices, early mobilisation, and low-molecular-weight heparin
Mandatory complication insurance — required by Turkish law for all international patients
12-month structured aftercare — video consultations at 2 weeks, 1, 3, 6, and 12 months plus 24/7 WhatsApp access
Your Bariatric Journey at MedProper: Step by Step
Free consultation — contact MedProper via website, WhatsApp, or email with your height, weight, and medical history
Medical assessment — personalised evaluation confirming eligibility and recommended procedure within 48 hours
Booking — pay deposit, receive pre-operative instructions and 2-4 week liquid diet plan
Day 1 in Istanbul — VIP airport transfer to hotel, settle in
Day 2 — transfer to hospital, pre-operative blood tests, ECG, chest X-ray, anaesthesia assessment
Days 5-7 — transfer to partnered hotel, rest and recovery, dietary guidance
Day 7-8 — final check-up with surgeon, discharge and return flight
Months 1-12 — structured online aftercare: video consultations, dietary support, blood work review
What is the success rate of bariatric surgery?
Success rates depend on the procedure: gastric sleeve produces 60-70% excess weight loss at 12-18 months, gastric bypass produces 65-75%, and these results are largely maintained at 10 years (51-60% EWL). Type 2 diabetes remission rates are 60% for sleeve and 80%+ for bypass.
What BMI do I need for bariatric surgery?
At MedProper (following IFSO guidelines): BMI 35+ for surgery, BMI 30+ with comorbidities (diabetes, hypertension, sleep apnoea), and BMI 27+ for gastric balloon. The NHS requires BMI 40+ or 35+ with comorbidities.
What is the difference between bariatric surgery and gastric sleeve?
Bariatric surgery is the umbrella term for all weight loss surgery procedures. Gastric sleeve is one specific type of bariatric surgery — the most commonly performed. Other types include gastric bypass, gastric balloon, and revisional surgery.
How long does bariatric surgery take?
Gastric sleeve takes 45-75 minutes, gastric bypass takes 90-150 minutes, mini bypass takes 60-90 minutes, and gastric balloon takes 15-20 minutes. All surgical procedures are performed laparoscopically under general anaesthesia.
What are the long-term effects of bariatric surgery?
Long-term effects include sustained weight loss (51-60% of excess weight at 10 years), Type 2 diabetes remission (60-80%), resolution of hypertension and sleep apnoea, reduced cardiovascular mortality (50-70%), and improved quality of life. Lifelong vitamin supplementation is required after bypass and recommended after sleeve.
Can bariatric surgery cure Type 2 diabetes?
Bariatric surgery produces remission of Type 2 diabetes in approximately 60% of gastric sleeve patients and 80%+ of gastric bypass patients. Remission often occurs within days of surgery, before significant weight loss, due to hormonal and metabolic changes. Bypass is the recommended procedure specifically for diabetes treatment.
What is the mortality rate for bariatric surgery?
The mortality rate for laparoscopic gastric sleeve at experienced, JCI-accredited centres is approximately 0.08-0.19% (roughly 1 in 500 to 1 in 1,250). For gastric bypass, the rate is 0.2-0.5%. Both are comparable to or lower than many commonly performed surgical procedures.
How do I choose between gastric sleeve and gastric bypass?
Gastric sleeve is recommended for BMI 35-45 without severe reflux — it is simpler, has lower complication rates, and requires fewer lifelong supplements. Gastric bypass is recommended for BMI over 45, Type 2 diabetes, or chronic acid reflux — it produces greater weight loss and superior metabolic outcomes. Your MedProper surgeon will recommend the best option during a free consultation.
What diet do I follow after bariatric surgery?
The post-operative diet progresses through four phases: clear liquids (days 1-3), full liquids including protein shakes (days 4-14), pureed foods (weeks 3-4), and soft foods (weeks 5-6), before transitioning to normal meals in small portions. Protein intake (60-80g daily) is prioritised. MedProper provides a detailed 12-month nutrition guide.
Will I need plastic surgery after bariatric weight loss?
After losing 60-75% of excess weight, many patients have excess skin, particularly around the abdomen, arms, thighs, and breasts. Body contouring procedures such as tummy tuck, arm lift, and breast lift are typically performed 12-18 months after bariatric surgery, once weight has stabilised.
Does MedProper accept patients over 60?
Yes, MedProper performs bariatric surgery on patients up to 65 as standard. Patients over 65 are assessed on a case-by-case basis, considering overall fitness, anaesthesia risk, and expected benefit. Additional cardiac and pulmonary testing may be required.
How quickly can I get bariatric surgery at MedProper?
The typical timeline from initial consultation to surgery is 2-4 weeks. After your free assessment and procedure recommendation (within 48 hours), you pay the deposit, complete a 2-4 week pre-operative liquid diet, and travel to Istanbul for surgery. There are no waiting lists.
