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Lose Weight Safely With Top Bariatric Surgeons in Istanbul Turkey
Discover lasting weight loss solutions with our world-class bariatric surgery program. A new, healthier you is waiting.
Meet Op. Dr. Barış Demiriz – Turkey's Leading Bariatric Surgeon Driving Life Changing Weight Loss
Our nationally recognized bariatric surgery program, led by Dr. Demiriz, delivers proven results through expertise in gastric sleeve, gastric bypass, and advanced metabolic surgeries.
- 17+ years of specialized surgical experience.
- Over 10,000 successful bariatric procedures performed.
- A personal commitment to your journey, from the first consultation to personally managing your long-term nutritional follow-up.
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Watch real patient stories and learn more about our bariatric surgery program.
ESG vs. Gastric Sleeve: What's the Difference?
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Obesity Treatment Surgery Packages
Gastric Sleeve Surgery
- 70%+ stomach volume reduction
- Faster and longer-lasting satiety
- Reduced ghrelin (hunger hormone)
- Natural digestive flow preserved
- Improvement in Type 2 diabetes
Gastric Bypass & Mini Gastric Bypass
- Strong and rapid weight loss
- Restriction + malabsorption combined
- High success in Type 2 diabetes control
- Significant reflux relief
- Mini bypass: shorter operation time
What Our Patients Say
Real stories from real patients — discover how our bariatric surgery program transformed lives and restored confidence.
Before coming to Türkiye, I had many concerns about weight loss surgery. However, from the first consultation, Dr. Barış Demiriz reassured me and instilled confidence in me. He clearly explained every step and patiently answered all my questions. The surgery went smoothly, and I already feel like I've regained control of my life. Thank you Liv Hospital.
I never imagined I could feel so energetic again. I've lost over 35 kilos since my surgery, and my daily life has completely changed. Walking is easier, sleeping is better, and I feel younger and fitter. Choosing Dr. Barış Demiriz and Liv Hospital was one of the best decisions I've ever made.
What impressed me most wasn't just the medical care, but how kind everyone was. Everyone, from the nurses to the coordinators, approached me with warmth and professionalism. I never felt alone throughout the process. Dr. Barış Demiriz and his team truly care about their patients.
Traveling abroad for surgery initially seemed stressful, but everything was perfectly organized. My airport transfer, hotel accommodation, and appointments were all arranged seamlessly. This made it much easier for me to focus on my recovery. I am so happy that I trusted Dr. Barış Demiriz and his team.
Before the surgery, my health problems were getting worse every year. I was struggling to control my blood sugar and constantly feeling tired. Now I am healthier, lighter, and much more hopeful for the future. Dr. Barış Demiriz gave me a second chance at life.
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Could Medical Weight Loss Be Your Next Step?
Comprehensive Bariatric & Metabolic Solutions
Your weight loss journey deserves a personalized plan. We offer all major bariatric surgeries including Gastric Sleeve, Gastric Bypass, Mini Bypass, Gastric Balloon, and Advanced Metabolic Procedures customized to your medical profile for the safest, most effective results.
Gastric Sleeve Surgery
Our Gastric Sleeve delivers superior long term results using enhanced surgical techniques that minimize reflux, reduce complications, and support consistent weight loss. Ideal for patients seeking a safer and more effective version of traditional gastric sleeve surgery.
Gastric Bypass & Mini Gastric Bypass
For patients with diabetes, severe obesity, or reflux, we provide both Gastric Bypass and Mini Bypass options. These surgeries offer powerful metabolic benefits, rapid weight loss, and proven long term success.
Gastric Balloon (Non-Surgical Option)
For patients with diabetes, severe obesity, or reflux, we provide both Gastric Bypass and Mini Bypass options. These surgeries offer powerful metabolic benefits, rapid weight loss, and proven long term success.
Distal Bipartition (Advanced Metabolic Surgery)
A highly specialized surgical option recommended for patients with diabetes, insulin resistance, or weight regain after previous procedures. Distal Bipartition offers strong metabolic improvement and exceptional long term outcomes.
The Liv Hospital Advantage: A Higher Standard of Care
We are your partners in building sustainable, long-term health. Our program is uniquely designed to support you at every stage, focusing on what matters most: your safety and your lasting success.
Surgeon-Led Lifelong Follow-Up:
Your progress is not handed off to a junior team member. Dr. Demiriz personally tracks your nutritional journey with frequent check-ups for the first 24 months and annual follow-ups there after.
Highest Safety & Tech Standards:
We ensure your safety by exclusively using the most advanced, single-use, FDA/CE-approved technology for every procedure.
All-Inclusive Pre-Operative Care:
Your package includes all necessary pre-operative evaluations, including comprehensive cardiology review, mandatory endoscopy, and full lab work.
Advanced Solutions for Lasting Results
We move beyond standard procedures to offer advanced solutions with proven, superior outcomes. We will evaluate your unique medical profile (BMI, diabetes status, etc.) to determine the most effective path for you.
Modified Sleeve Gastrectomy
We do not recommend the standard sleeve, as global data shows it can have a high (50%) long-term weight regain rate. Dr. Demiriz specializes in an advanced Modified Sleeve Gastrectomy.
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This technique leaves a much smaller stomach volume than the standard procedure.
It provides more effective, durable weight loss. In our surgeon's extensive series, this technique has a weight regain rate of just 3%.
The "No-Vomit" Gastric Balloon
For patients seeking a non-surgical solution, we offer a groundbreaking protocol designed for maximum comfort.
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We use a special pre-procedure diet and medication plan, combined with a crucial 24-hour inpatient admission for symptom management.
This protocol is highly successful. 80% of our patients do not vomit even once, and we have had zero balloons removed early (within 48 hours) due to intolerance in the last 5 years. We offer 6-month, 1-year, and swallowable balloon options.
Distal Bipartition
For patients with highly complex metabolic conditions, such as uncontrolled type 2 diabetes and very high BMIs, this is our most powerful surgical solution.
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This advanced technique is exceptionally effective for both significant weight loss and resolving co-morbidities. In our experience, no patient has failed to lose weight with this procedure.
Your Step-by-Step Bariatric Surgery Journey
The Evaluation & Planning Stage
- Initial Consultation: A comprehensive review of your medical history, including age, height, weight, co-morbidities, current medications, and surgical history.
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- Comprehensive Medical Review: Necessary pre-operative tests are conducted (all included in the package).
- Personalized Plan: Based on your history, Demiriz will determine the most suitable surgical option.
Pre-Surgery Prep
- Finalizing Details: Final clearances for surgery are obtained from specialists like anesthesia and cardiology, and the surgery date is set.
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- Pre-Operative Preparation: A special 10-day pre-operative diet is started (a diet list will be provided). We also recommend 1 week of PPI (stomach protector) medication.
- Lifestyle Requirements: Patients must stop smoking to ensure proper healing and reduce complication risks.
Post-Surgery & Follow-up
- Surgery & Initial Recovery: The procedure is performed using single-use, FDA/CE-approved materials, followed by a short, closely monitored hospital stay of 2-3 days.
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- Required In-Country Stay: Patients must stay in Turkey for at least 1 week post-surgery. This is a critical safety measure, as 95% of complications develop within this first week.
- Continuous Monitoring Schedule: Our surgeon-led follow-up is lifelong. It begins with intensive check-ups during the critical early months, transitioning to structured appointments throughout the first two years. After this, we support your long-term success with annual remote check-ins.
Why Choose Liv Hospital for Bariatric Surgery?
Internationally trusted bariatric surgery experts, advanced surgical technology, proven patient outcomes, and complete pre- and post-operative support everything you need for a safe and successful transformation in Turkey.
Specialized team
Your Journey, Guided by Top Bariatric Specialists
Ethical Excellence
International Patient Services
Luxury & Comfort
Comprehensive Aftercare and Rehabilitation
Why Turkey for Advanced Supportive Care
International Expertise, Accessible to Patients Worldwide
Cost-Effectiveness
Receive world-class, JACIE-accredited BMT care, often at a significantly lower cost than in Western countries, optimizing your treatment budget.
Expertise
Our internationally recognized oncologists and multidisciplinary tumor boards provide world-class second opinions on complex Phase I/II protocols and personalized research-based treatment plans.
Bypass Wait Times
Bypass the frustrating and potentially harmful delays caused by insurance approvals for novel agents. Start your life-saving clinical research treatment immediately through streamlined internal processes.
Comprehensive Care
Your treatment package includes all medical costs, consultations, and full support from our international research team, ensuring a stress-free journey throughout your complex next-generation clinical regimen.
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A glimpse inside Liv Hospital — advanced facilities, expert teams, and patient-centered care.
Frequently Asked Questions
What is included in the bariatric surgery package?
Our package is all-inclusive from your arrival until discharge. It covers the surgical procedure, the hospital stay, and all required pre-operative evaluations. This includes the complete cardiology workup, all lab tests, the mandatory pre-operative endoscopy.
Why do you recommend a 'Modified' Sleeve Gastrectomy?
While the standard sleeve is common, global data shows it can have a long-term weight regain rate as high as 50%. We do not recommend this procedure. Instead, Dr. Demiriz specializes in an advanced Modified Sleeve Gastrectomy. This technique leaves less stomach volume, providing more effective and, most importantly, more durable weight loss. In our surgeon's extensive series, this technique has a weight regain rate of only 3%.
What makes your 'No-Vomit' Gastric Balloon protocol different?
Our non-surgical balloon protocol is uniquely designed for comfort. Standard balloon placement often results in severe nausea and vomiting. We prevent this with a special protocol involving a pre-procedure diet and medication. The most critical part is a mandatory 24-hour inpatient admission after the procedure, which allows us to manage symptoms proactively. The result: 80% of our patients do not vomit even once, and we have had zero balloons removed early (within 48 hours) due to intolerance in the last 3 years.
What is your approach to patient safety?
Your safety is our priority, and our surgeon's complication rate is exceptionally low. As a critical safety measure, we require all surgical patients to stay in Turkey for at least 1 week after their procedure. This is because 95% of early complications occur within this window, allowing our team to monitor your recovery closely.
What makes your surgical and non-surgical options different?
We focus on techniques with the best long-term, durable results. For surgery, we specialize in an advanced Modified Sleeve Gastrectomy, which has shown a significantly lower weight regain rate (only 3% in our series) compared to the standard procedure. For non-surgical options, our 'No-Vomit' Balloon protocol uses a unique 24-hour admission for symptom management, allowing 80% of our patients to complete the process without any vomiting. We do not offer procedures with low success or high complication rates.
Who manages my follow-up care after I go home?
Your surgeon does. Uniquely, Op. Dr. Barış Demiriz personally manages your nutritional follow-up for your entire journey. Our program includes an intensive schedule of check-ups for the first two years, followed by annual remote follow-ups for life, to ensure you have the support to maintain your success.
International coordinators respond within 12 hours
Take the First Step Towards a New Beginning
