For patients in South Africa

Gastric bypass in Turkey from South Africa: a plain guide

A gastric bypass, usually the Roux-en-Y type, is a permanent operation that creates a small stomach pouch and reroutes part of the small intestine. You eat less, absorb fewer calories and nutrients, and gut hormones that affect hunger and blood sugar change. It is a metabolic operation as much as a weight loss one, and it means taking supplements for life.

Who it suits

• People with a BMI of 40 or more
• People with a BMI of 35 or more and weight-related conditions such as type 2 diabetes, high blood pressure, high cholesterol, sleep apnoea or reflux
• People who have not kept weight off without surgery
• People fit for surgery and committed to lifelong changes in diet and lifestyle

Compared with a gastric sleeve, a bypass also changes how food passes through the intestine, so it reduces absorption as well as stomach size. In some patients type 2 diabetes improves markedly or goes into remission, sometimes before much weight has been lost, but results vary and we cannot promise them. If you use Mounjaro, Ozempic, Wegovy or another weight-loss injection, tell the surgeon at the start so it can be planned for. More detail is on the gastric bypass treatment page, and all options are compared in our weight loss surgery guide for South African patients.

Assessment and the operation

In İzmir, assessment typically includes an examination, blood tests and a metabolic assessment, a nutritional evaluation and a psychological assessment, with imaging or an endoscopy if needed.

Under general anaesthesia, usually by keyhole surgery, the surgeon creates a small stomach pouch, divides and reroutes the small intestine, connects the new pathway and closes the incisions. Reversal is technically possible but complex, so treat a bypass as permanent.

Hospital stay and the flight home

You usually spend two to four nights in hospital, with pain relief and early walking. Light activity is usually possible after one to two weeks and a normal routine after three to four. Blood clots are one of the risks of the operation itself, and a ten-hour flight adds to that risk. Allow extra days in İzmir for check-ups after discharge; the surgeon decides when you are fit to fly. Book a return ticket you can change.

• Choose an aisle seat, get up and walk regularly, and keep sipping fluids
• Tell us at the start about any history of blood clots, smoking or hormone medication

Vitamins for life and follow-up at home

Food comes back in phases: clear liquids, then puréed food, soft food and gradually solid food, in small portions and chewed well. Because absorption is reduced, supplements are needed for life, typically a multivitamin, vitamin B12, iron, calcium and vitamin D, and regular blood tests are essential to catch deficiencies early. Following the diet advice also helps avoid dumping syndrome, when sugary food moves into the intestine too quickly and causes faintness, sweating or diarrhoea.

This care continues for years in South Africa. Before you book, find a GP for the blood tests and a dietitian, keep any diabetes doctor involved, and take your operation note and supplement plan home. Our team follows you up by message and video call; Turkey is one hour ahead of South Africa.

Results and risks

Weight loss varies: most happens in the first year, with further loss over 18–24 months, and keeping it off depends on keeping up the changes. Risks include infection, bleeding, blood clots, nutritional deficiencies, dumping syndrome and, rarely, a leak where the new connections are joined. If you develop severe abdominal pain, a fever, a racing heart or breathlessness, seek emergency care at home straight away. Under our treatment guarantee, complications and clinically necessary revisions within a year are treated in İzmir at no charge for that treatment; flights and accommodation are your own. See our clinic facts and complaints process.

What we will not do

We will not confirm surgery before a surgeon has assessed you, promise a weight loss figure or diabetes remission, or operate if your health makes it unsafe.

Frequently asked questions

Is a gastric bypass permanent?

Treat it as permanent. Reversal is technically possible but complex.

Will I need vitamins for life after a gastric bypass?

Yes. Because absorption is reduced, lifelong supplements such as a multivitamin, vitamin B12, iron, calcium and vitamin D are needed, with regular blood tests at home.

Can a gastric bypass improve type 2 diabetes?

Many patients see major improvement or remission, but results vary. Keep your diabetes doctor at home involved, as medicines may need adjusting.

How long after a gastric bypass can I fly home to South Africa?

The surgeon decides. You usually spend two to four nights in hospital, then further days in İzmir for check-ups, because a ten-hour flight soon after surgery raises the risk of blood clots.

Will my medical aid cover a gastric bypass in Turkey?

South African medical schemes generally do not cover planned treatment abroad, and standard travel insurance usually excludes it. Ask your scheme before booking; we cannot promise cover.

Start with a free online consultation. Planning the trip? Read the guide for South African patients and the e-Visa guide.