Gastric balloon
Effective weight reduction without surgery
How does the gastric balloon work?
The gastric balloon is a soft silicone implant filled with fluid or air that is inserted into the stomach. It makes you feel full more quickly, reduces food intake and thus supports weight loss.
- No surgical intervention required
- Remains in the stomach from approx. 6 months to 12 months
- Support through nutrition & exercise therapy for lasting success
Procedure for gastric balloon therapy

1. Beratungsgespräch & Eignungsprüfung
Before deciding to undergo gastric balloon therapy, you will have a detailed consultation with Dr. Brunk to determine whether the gastric balloon is suitable for you. The most important factors are
✔ A BMI between 27 and 40
✔ No serious gastrointestinal illnesses
✔ Previous unsuccessful attempts to lose weight sustainably with diets
You will also receive comprehensive information from My-Weigh, our partner for weight management. My-Weigh will support you throughout the therapy phase with individual coaching and nutrition tips.

2. Einsetzen des Magenballons
The procedure is performed on an outpatient basis and only takes 15-20 minutes:
- The gastric balloon is inserted by means of gastroscopy (endoscopy).
- It is then filled with a sterile liquid.
- You can go home after a few hours.

3. Anpassung der Ernährung & Nachsorge
A gastric balloon is not a substitute for a healthy lifestyle, but a tool to support a change in diet. The following are important:
- Slow, conscious food intake
- Reduced portion sizes and healthy foods
- Adequate fluid intake
- Regular exercise for lasting success
Together with My-Weigh, you will receive individual nutritional coaching and psychological support to establish the change in the long term.

4. Regelmäßige Kontrolle & Entnahme des Ballons
- Monthly check-ups with Dr. Brunk to monitor progress
- After 6 months, the gastric balloon is removed endoscopically, also on an outpatient basis
- After removal, we will continue to support you in maintaining your weight
Why Dr. Brunk?
Your specialist for gastric balloon therapy
✔ Experienced gastroenterologist specializing in endoscopic weight loss
✔ Modern practice & gentle procedures for maximum safety and comfort
✔ Cooperation with My-Weigh for a holistic care concept

Joint concept with My-Weigh
Your key to success
- Individual medical care by Dr. Brunk
- Nutritional advice & coaching by My-Weigh
- Long-term aftercare for weight stabilization
Frequently asked questions (FAQs)
How much weight can I lose with the gastric balloon?
The average weight loss is 10-25 kg, depending on the individual dietary changes.
Is the gastric balloon suitable for everyone?
Can you feel the gastric balloon?
What happens after the balloon is removed?
Office hours and contact
You can contact us by phone, e-mail or via our online form to make an appointment or ask questions. Our practice is located at Ansbacher Straße 13, 10787 Berlin. You can reach us by public transportation or by car. There are plenty of parking spaces nearby.
The exclusive location of the practice offers you access to the vibrant center of West Berlin with its internationally renowned financial and business institutions as well as numerous attractions such as the KaDeWe, Kurfürstendamm, etc.
Gastroenterology at Wittenbergplatz
Ansbacher Straße 13,
10787 Berlin
Phone: 030 21 00 57 20
wittenbergplatz@gastroenterologie-brunk.de
Opening hours
Mon.: 07:30 – 15:00
Tue & Wed: 07:30 – 15:00
Thurs.: 08:00 – 15:30
Fri.: closed
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