The gastric bypass has been performed for decades and remains a standard operation for severe obesity, particularly when reflux or type 2 diabetes is present. In this guide New City Clinic explains who it is considered for and what life looks like afterwards.
Who is a gastric bypass for?
Weight loss surgery is generally considered at a body mass index of 40 or more, or 35 or more with a related condition such as type 2 diabetes, high blood pressure or sleep apnoea. A bypass is often preferred over a sleeve for people with significant acid reflux and for those whose diabetes is hard to control. The decision follows blood tests, an endoscopy and assessment by the surgical, medical and dietetic team.
How does the operation work?
Using keyhole surgery, the surgeon creates a small stomach pouch and connects it to the small intestine, so food bypasses most of the stomach and the first part of the bowel. You feel full after small portions, and gut hormones that influence appetite and blood sugar change. The operation takes around two hours. A mini gastric bypass uses a single connection and is an alternative your surgeon may discuss.
Life after a bypass
Because absorption changes, vitamin and mineral supplements, including vitamin B12, iron, calcium and vitamin D, are needed for life, with regular blood tests. Sugary foods can cause dumping syndrome, with nausea, sweating and palpitations. Alcohol is absorbed faster. Pregnancy is advised against for 12–18 months. Long-term success depends on diet, activity and attending follow-up.
A gastric bypass: cost in Turkey and what is included
The price depends on the technique, the extent of the procedure, the hospital, the length of stay and any procedures planned together, which is why a single figure quoted without an examination or photo assessment is misleading. After a physician has reviewed your case, New City Clinic sends you an itemised written quote. It lists hospital, surgeon and anaesthesia fees, pre-operative tests, medication, any compression garment or support bra, accommodation, airport–hotel–hospital transfers and interpreting separately; flights are not included unless stated. When comparing clinics in Istanbul, look beyond the price: check that the hospital is licensed by the Ministry of Health, what the surgeon specialises in, and how follow-up is handled once you are back home.
A gastric bypass with New City Clinic
New City Clinic is an authorised health tourism intermediary registered with the Turkish Ministry of Health and HealthTürkiye. When you contact New City Clinic about a gastric bypass, a physician first reviews your photos and medical information, and you then receive a written treatment plan with an itemised quote. Once you arrive in Istanbul, the New City Clinic team organises your airport welcome, accommodation, hospital appointments and interpreting. Your procedure is performed by a specialist physician at a Ministry of Health approved partner hospital, and follow-up continues after you return home.
Recovery timeline
2–3 nights in hospital
Leak tests, first walks and fluids on the first day.
First 2 weeks
Liquids only; most patients fly home on day 5–7.
Weeks 2–6
Purées, then soft foods; desk work within 1–2 weeks.
Months 12–18
Most weight is lost; supplements and blood tests continue for life.
Accommodation and transfers
On request, New City Clinic organises your airport–hotel–hospital transfers and your stay at partner hotels close to the hospital. The same can be arranged for a companion; details are set out in writing in your quote.
Aftercare
Medication and check-ups
Take the medication your physician prescribes as directed and attend your planned check-ups.
Smoking and alcohol
Both slow healing; avoid them before and after the procedure for the period your physician advises.
Movement and rest
Short walks support circulation; wait for your physician’s approval before strenuous exercise or heavy lifting.
When to get in touch
Contact your New City Clinic coordinator straight away in case of high fever, increasing pain, redness or anything unexpected.
Frequently asked questions
Is a gastric bypass reversible?
Technically it can be reversed, but this is rarely done and is a major operation. It should be regarded as permanent.
Will my diabetes improve?
Many people with type 2 diabetes see a marked improvement, sometimes soon after surgery, but it cannot be promised and medication is adjusted by your doctor.
Do I need vitamins for life?
Yes. Supplements and periodic blood tests are a permanent part of life after a bypass.
Deciding on a gastric bypass is a confident step when it is taken with the right information and the right team. You can book a free consultation with the New City Clinic team for your questions.
This article is for general information; consult your physician for diagnosis and treatment.
