Professor Doctor




Founder President of Metabolic Surgery Society, Turkey Metabolic Surgery Foundation and National Obesity Database

Prof. Dr. Alper Çelik has been serving in the fields of Diabetes Surgery and Metabolic Surgery for more than 10 years. Throughout these years, it has proven its success in its field by successfully treating more than 6500 diabetic patients.

Prof. Dr. Alper Çelik still continues to serve 35 different countries with high quality and 24/7 one-on-one health consultant support in his International clinic in Mecidiyeköy, Istanbul.

Ileal Interposition Surgery

Ileal interposition is seen as the definitive solution for Type 2 diabetes patients. The aim of the surgery is to deactivate the hormones that cause insulin and increase the hormone levels that increase insulin sensitivity.

Transit Bipartition Surgery

Transit Bipartition is the preferred and developed metabolic surgery method in the treatment of Type 2 Diabetes. It is a reliable operation and the main target is to decrease insulin hormones and increase sensitivity hormones.


Prof. Dr. Alper Çelik answers the most frequently asked questions for you.

What Problems Can Diabetes Cause?

Diabetes disease is an insidious disease and usually noticed after it starts harming the body.

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Is Diabetes Treatment Possible With Surgery?

Surgical operation performed with metabolic surgery takes effect in a short time.

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What is Diabetes? What are the Symptoms?

Diabetes is a hidden disease. Therefore, the symptoms may not be obvious.

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Prof. Dr. Alper Çelik –


We treat type 2 diabetes patients using surgical methods. This is called Metabolic Surgery. The classical treatment algorithm of type 2 diabetes is education, diet, exercise and medication use. However, despite all these treatments, the disease sometimes shows a progressive course. Even the desired results cannot be obtained despite intensive insulin hormone use. In this case, Metabolic Surgery should come to the fore as an effective treatment alternative.



We treat patients with type 2 diabetes using surgical methods. This is called Metabolic Surgery. The classical treatment algorithm of type 2 diabetes is education, diet, exercise and medication use. However, despite all these treatments, the disease is sometimes progressive. Despite the intense use of insulin, desired results cannot be obtained. In this case, Metabolic Surgery should come to the agenda as an effective treatment alternative.

Of course. Type 1 and type 2 diabetes are completely separate diseases. There is no insulin production in type 1 diabetes. In type 2 diabetes, the body produces insulin but cannot use it. We can only help patients with type 2 diabetes. In other words, we ensure that the body uses insulin that it cannot use.

Type 2 diabetes is a multifactorial, heterogeneous and dynamic spectrum of diseases. It is a process in which not only hormonal but neural, psychogenic and environmental factors are also effective. The cornerstones of classical therapy are diet and exercise. However, no one can diet and exercise for whole life. In fact, the proportion of patients who can only diet and exercise at the desired level for 3 years is not above 5% in any research. Medication treatments are not intended to change the general course of the disease, but are “saving the day” treatments. If we want to effectively combat type 2 diabetes and related loss of organs and workforce in appropriate patients, we need to apply more radical but rational treatments.

In type 2 diabetes, medium- and large-scale vascular damage begins before the disease is diagnosed. Already, a significant number of patients are considered to have a 2-3 year history of disease at the time of diagnosis. Imagine, as soon as you get a diagnosis, you already have an impact on your veins. However, type 2 diabetes generally has a moderate course. So, a significant part of the complications gradually manifest over the years. For this reason, it is also defined as “insidious” disease.

In the follow-up of a type 2 diabetes patient, it is generally accepted to consume their own insulin reserves over a period of 10-12 years, and after this period, signs of organ damage begin to manifest themselves. This is the period when patients generally apply for treatment. Most patients do not want to have surgery while things seem to be fine. In summary, in order for us to help a diabetic patient with surgery, they should either not be able to control their sugar with standard treatments or have signs of organ damage. Of course, applying without loss of organs and before the insulin reserves are exhausted has many positive consequences.

It is their own reserve and activities that determine the extent to which a type 2 diabetes patient will benefit from this surgery. The more sugar resistance hormone reserves available and the higher the activity, the higher the chances of success. However, the most important point to remember is that diabetes has hormonal, nervous and psychogenic bases. These surgeries only treat the hormonal aspect of diabetes. There will be a fluctuation in blood sugar when a patient with whom you provide hormonal control with a very crude expression is upset, delighted, angry for any reason. In fact, such fluctuations occur in individuals without diabetes.

However, the duration and severity of the fluctuation are smaller in non-diabetic patients. After the operation, this fluctuation will be lighter and will return to normal in a shorter time. Type 2 diabetes is a dynamic disease with a variational course over time. The important thing is the 3-month average blood glucose values and the presence of organ damage. From this point of view, more than 90% of patients will be controlled over a 10-year period.

If your diabetes is not improving despite all medications and treatments, contact us immediately. Let us introduce you to the miracle of metabolic surgery. Say goodbye to diabetes for life.


Up to The Present


Years of Experience


Patients Recovered




Comments of Our Patients Who Recovered From Type 2 Diabetes with Metabolic Surgery Method.

Selenay Hanım met with diabetes at a very young age. Stating that she had been overweight since her childhood, Selenay could not lose weight due to insulin hormone. Selenay Hanım, who had a successful surgery about 1 year ago, stepped into a drug-free, healthy life. His father, who was also diabetic, regained his health after an operation in our clinic.
Selenay Tuna
Fevzi Bey is one of the three people we operated on in the Erdemli Family. The family reached us in 2013 while doing research to end their fathers' long-lasting type 2 diabetes. About 4 years after his father's surgery, he met type 2 diabetes. Fevzi Bey, who had surgery a year ago, completely eliminated type 2 diabetes from his life.
Fevzi Erdemli​


Informations about metabolic surgery and diabetes.

seker hastaligi ameliyati

Diabetes is a disease caused by sedentary life, malnutrition or genetic reasons. While there is no insulin production in Type 1 diabetes, there is production in Type 2 diabetes patients, but the patient is unable to use it.

Tip 2 Diyabet Nedir?

Diabetes patients are also categorized within themselves. Among these categories, the most common type of diabetes is Type 2 diabetes patients. These patients usually consist of people aged 40 and over.


Diabetes basically occurs as a result of an imbalance between the blood sugar and the insulin hormone that enables this sugar to be used in cells. As a result of illness, sugar cannot be used in cells as it should be.


Do you need help? Just write to us!
Prof. Dr. Alper Çelik and our experienced team offer metabolic surgery and diabetes treatment services. Get ready to say goodbye to diabetes for life.