Metabolic surgery in Turkey: what it is and who it is for
Metabolic surgery is an operation on the stomach and bowel that is done to treat a metabolic disease — mainly type 2 diabetes — and not only to lose weight. The operations are the same ones used in weight-loss surgery; the difference is the reason for operating and the way results are judged: blood sugar, medicines, blood pressure and blood fats, as well as weight. Metabolic surgery in Turkey starts at €4,590 at an accredited hospital on our site; the price is the hospital's own list price for international patients.
If you only want to know about weight loss, read our guides to weight-loss surgery and gastric sleeve. This page is for people whose main problem is diabetes, high blood pressure, fatty liver or sleep apnoea linked to excess weight, and who want to understand what surgery can and cannot do.
Metabolic surgery for diabetes: what the evidence shows
In randomised trials, surgery controls type 2 diabetes better than medicines alone in people with obesity. In the STAMPEDE trial (New England Journal of Medicine, 2012 and the five-year report in 2017), about 29% of patients who had gastric bypass and 23% of those who had a sleeve reached an HbA1c of 6% or lower at five years, compared with 5% on intensive medical treatment, and most surgical patients needed fewer diabetes medicines.
Three limits matter. First, remission is not a cure: in follow-up studies a part of patients regain high blood sugar after some years, especially when weight returns or when diabetes has lasted a long time. Second, results are best in people whose pancreas still makes insulin, which is why earlier surgery works better than surgery after 15 years of diabetes. Third, surgery is a treatment for type 2 diabetes; it does not replace insulin in type 1 diabetes.
Who qualifies for metabolic surgery for type 2 diabetes
International guidance sets the thresholds. The ASMBS/IFSO position statement (2022) recommends metabolic surgery for a body mass index (BMI) of 35 or more, whatever the health problems, and says it should be considered from BMI 30 with metabolic disease; for people of Asian origin the thresholds are lower, from BMI 27.5. The Diabetes Surgery Summit II statement (2016) recommends surgery for type 2 diabetes with BMI 40 or more, or 35–39.9 when diabetes is not controlled with medicines, and says it should be considered from BMI 30 when control is poor. In the UK, NICE guideline CG189 advises considering surgery from BMI 35 with a serious condition such as type 2 diabetes, and a faster assessment when diabetes is recent.
You usually need to be 18 or older, have tried non-surgical treatment, understand that you must change how you eat for life, and have no untreated eating disorder, active substance misuse or severe, uncontrolled heart or lung disease. A cardiologist, an endocrinologist and a dietitian should look at your reports before an operation is planned.
Sleeve, bypass or mini bypass: which operation is used
| Operation | What is done | Main considerations |
|---|---|---|
| Gastric sleeve | About 80% of the stomach is removed, leaving a narrow tube | Simpler, no bowel rerouting; may worsen reflux; diabetes effect somewhat smaller than bypass |
| Roux-en-Y gastric bypass | A small stomach pouch is joined to the small intestine, bypassing the upper bowel | Strongest evidence for diabetes control and reflux; needs lifelong vitamins; risk of dumping syndrome |
| Mini gastric bypass | A long stomach pouch joined to the bowel with one connection | Shorter operation, strong diabetes effect; bile reflux is the main concern |
| Biliopancreatic bypass | Sleeve plus a long bowel bypass | Largest effect, highest risk of vitamin and protein deficiency; for selected patients |
The choice is made by the surgeon and endocrinologist together, based on diabetes duration, BMI, reflux and your medicines. Be careful with a clinic that offers one operation to everybody. Non-operative options such as a gastric balloon do not have the same evidence for diabetes.
How much does metabolic surgery cost in Turkey?
At the hospitals listed on this page metabolic surgery in Turkey starts at €4,590. The hospital cards show each price in your currency and what the package contains. The other countries in the table are approximate private self-pay totals and vary widely.
| Country | Typical price (sleeve or bypass) | Note |
|---|---|---|
| Turkey | from €4,590 | Hospital package; check which operation and how many nights are included |
| United Kingdom | about £7,000–£14,000 private (approximate) | NHS surgery is free for those who meet NICE criteria, but waits are long |
| United States | about $15,000–$25,000 self-pay (approximate) | Often covered by insurance when criteria are met |
| Germany | about €8,000–€15,000 self-pay (approximate) | Statutory insurers fund surgery after an approval process |
The metabolic surgery cost rises with a bypass instead of a sleeve, with a higher BMI, extra tests for heart disease, a longer hospital stay and complications. Ask for a written quote that states the operation, the nights in hospital and hotel, tests, transfers and the dietitian's follow-up. If your health system funds surgery and you qualify, that route may be better than travelling, because follow-up is local.
Your trip, step by step
Plan about 5–7 days in Turkey. Before travelling, send your latest blood tests (HbA1c, fasting glucose, lipids, liver and kidney tests), medication list and any heart reports, so the team can say whether you are suitable.
- Day 1: arrival, consultation with the surgeon, endocrinologist and dietitian, blood tests, ECG and an anaesthesia check; often a gastroscopy.
- Day 2: surgery by keyhole technique, which takes about one to two hours; hospital stay of two to three nights.
- Days 3–5: liquids only, walking, injections to prevent blood clots, medicine adjustment — insulin and tablets often need to be reduced quickly, so the team reviews your diabetes medicines daily.
- Day 6–7: check, written diet plan and medicine list, then the flight home once the surgeon allows it.
The general plan for coming to Turkey is on our how it works page.
Recovery and diet after metabolic surgery
Most people return to desk work after one to two weeks. The diet is staged: liquids for about two weeks, purée for two to four weeks, soft food after that and normal textures from about six to eight weeks. Protein first, small portions, and no fizzy drinks. Walk every day; avoid heavy lifting for around four to six weeks.
Blood sugar can fall within days, so you must monitor it and have your doctor at home adjust or stop medicines; taking full-dose insulin or sulphonylureas on a very small diet can cause hypoglycaemia. Weight loss is fastest in the first year; much of it is typically achieved by 12 to 18 months.
Risks of metabolic surgery
Metabolic surgery is major surgery. Serious complications — a leak from the staple line or join, bleeding, a blood clot in the leg or lung, and infection — are uncommon in experienced centres, and the risk of death is well below 1 in 100 in large registries, lower than for many other abdominal operations. Longer-term risks include gallstones with fast weight loss, acid reflux (more after a sleeve), narrowing at the join after a bypass, dumping, hernias, and nutritional deficiencies. You take a multivitamin, calcium, vitamin D and, after bypass, vitamin B12 and iron for life, and have yearly blood tests. Some patients regain weight. Mental health also needs attention: tell your doctor if you have a history of depression or alcohol problems, because alcohol is absorbed faster after bypass.
Choosing a hospital for metabolic surgery in Turkey
- A hospital with an intensive-care unit and a bariatric team that includes an endocrinologist, not a day clinic with only a surgeon.
- The surgeon's name and how many operations of this type they do each year, and whether a dietitian follows you after you return.
- A named contact for follow-up questions, and what happens if a complication appears after you are home; ask who pays.
- Equipment for the operation you need; JCI or national accreditation is shown on the hospital cards on this page.
Red flags: a quote before anyone has seen your blood tests, a price far below the market, a stay of only two days in total and pressure to pay a deposit. Browse the hospitals and doctors on this page, or see the bariatric surgery overview.
Follow-up at home
The operation is the start. Tell your GP or diabetes team before you travel, and bring the operation report and discharge summary home. Plan blood tests at about one, three, six and twelve months, then yearly: HbA1c, vitamins, iron, liver tests. Keep contact with a dietitian. A medical-travel insurance policy that covers complications is worth considering, because standard travel insurance does not cover planned surgery.
Conditions treated with Metabolic Surgery
Hospitals with Bariatric Surgery in Turkey
Frequently asked questions
At the accredited hospitals on our site metabolic surgery starts at about €4,600 for international patients (shown in your currency on this page). The exact price depends on the operation, your BMI and the stay, and is written on your quote.
Metabolic surgery is stomach or bowel surgery done to treat a metabolic disease such as type 2 diabetes, in addition to weight loss. The operations are the same as in bariatric surgery: sleeve, gastric bypass, mini bypass and biliopancreatic bypass.
It can put diabetes into remission, but it is not a guaranteed cure. In the STAMPEDE trial about 29% of bypass patients and 23% of sleeve patients reached an HbA1c of 6% or lower at five years, and some people regain high blood sugar later.
Guidelines recommend it from a BMI of 35, and consider it from BMI 30 when diabetes is poorly controlled, with lower thresholds for people of Asian origin. Your doctors check your reports first.
It is as safe as the hospital and team you choose. Pick an accredited hospital with intensive care, an endocrinologist and a dietitian, and stay the days your surgeon recommends. The risk of death after these operations is well below 1 in 100 in large registries.
Bypass has the strongest evidence for diabetes control and reflux; the sleeve is simpler and suits many people. Your surgeon and endocrinologist choose based on diabetes duration, BMI, reflux and medicines.
Usually 5 to 7 days, including two to three nights in hospital and a check before you fly.
Often the doses fall quickly, sometimes within days, and some medicines stop. Do not change them yourself; the hospital team and your doctor at home adjust them with your blood sugar readings.
Yes. After a sleeve or bypass you take a multivitamin, calcium and vitamin D, and after bypass vitamin B12 and often iron, for life, with yearly blood tests.
Yes, for people who meet NICE criteria — mainly BMI 35 or more with a condition such as type 2 diabetes, with a faster assessment when diabetes is recent. Waiting times are long, which is why some patients compare private surgery abroad.