Lasting weight loss
by Mini Gastric Bypass

(Stomach bypass)

  • Short waiting times

  • Specialized care

  • Personal attention

Have you been dealing with obesity for years and are having trouble getting rid of it?

  • You’ve been overweight for years, no matter what you do, you can’t get more than a few pounds off.

  • You’ve decided after much hesitation that you want a stomach reduction, but there are very long wait times everywhere. You don’t get anywhere fast.

  • You are tired of starting another diet and are ready for a healthy lifestyle.

Then let us help you. WeightWorks is a medical clinic with extensive knowledge about the causes and treatment of obesity. We specialize in gastric reduction surgery for permanent weight loss.

Want to know if you qualify?

Pathway for stomach reduction


Through a quick scan and screening, you’ll quickly know if you qualify for a stomach reduction. Once approved you will be scheduled for surgery


You are scheduled for gastric bypass surgery. Soon you may report to us and the surgery will take place. Click here for all the info on what the surgery looks like.


In the 5 years after surgery, you will continue to be monitored by us. We feel it is very important that you continue to do well after surgery.

We understand your

Nothing is more frustrating than always having to fight the pounds. No one chooses to be overweight. Obesity is a creeping disease that eventually affects your health. In addition, obese people are more likely to suffer from depression, shame and prejudice from others. We have been able to help many people in recent years on their way to a more enjoyable and healthier life through gastric bypass surgery.

We have an extensive team of specialists, psychologists, dieticians and lifestyle coaches. Individual attention is one of our most important values. Therefore, with us you are not a number but you speak to the same people from the start to the after process. The process begins with a screening and then surgery, but we will guide you for up to 5 years after your surgery. This is how we help you stay healthy in the future.

Team WeightWorks

Mini Gastric Bypass

Watch the video explaining Mini Gastric Bypass (gastric bypass) treatment from our gastrointestinal surgeon Dr. Frits Berends below.

Explanation of treatment

Mini Gastric Bypass (gastric bypass)

The Mini Gastric Bypass is a somewhat newer version of a classic Gastric Bypass. This gastric bypass is also called a One Anastomosis Gastric Bypass (OAGB = gastric bypass with one connection. The stomach reservoir in a Mini Gastric Bypass is slightly longer than in a conventional bypass to prevent bile from flowing back into the esophagus. The rest of the stomach just stays put and thus is not removed. Because part of the stomach is turned off, less hunger hormone is produced. So you can eat less, while still being less hungry. Weight loss from a Mini Gastric Bypass is the same as from a classic Gastric Bypass.

How it works:
The small intestine is connected to the reduced stomach. Even with this detour, the food does not come into contact with the digestive juices until later. In this way, 150-200 cm of intestine is skipped. But the small intestine is not cut. Because of the different route of food, the gut produces hormones that have a beneficial effect on feelings of hunger and satiety (how full you are). That helps to lose weight.

We check everything one more time before the operation is finished. When you wake up we have already closed all the wounds. So from the operation itself you don’t notice anything at all.

Difference with Gastric Sleeve

  • The operation is also on the small intestine
  • Nothing is removed, everything remains
  • Slightly better long-term weight loss
  • Better outcomes in people who have diabetes
  • Less heartburn than gastric sleeve
  • Slightly faster vitamin and mineral deficiencies

Difference with Gastric Bypass

  • A mini gastric bypass has not been around very long. The long-term results are less well known than with a classic gastric bypass
  • A mini gastric bypass has a slightly higher risk of acid reflux and ulceration
  • The mini gastric bypass is technically a little easier, as one less connection is made.

What are the wait times

At WeightWorks, there are no long wait times. Once you have started the preliminary process and the screening shows that you are suitable for one of our surgeries, you can be scheduled for your surgery within a few weeks. This is possible because we have a professional specialty team with one specialty, gastric reduction surgery. This allows us to work efficiently and thus help you quickly.

Experiences of our patients:

  • Operation:

    On December 21, 2021, I walked into WeightWorks full of nerves. What are they like, what can I expect, will I be approved? Once inside, all nerves fell off me because of the great team of staff. I was immediately put at ease and ...

  • Operation:

    My name is Rita after 30 years of doing all the diets I was done with all the crashing and yo-yo living. It was time to really choose for myself so went after the family doctor and got a referral letter for the ...

  • Operation:

    Struggling with pounds all my life, I went to my family doctor in 2020 to discuss options for losing weight. I had been to every dietician in the area, I knew every gym in the area inside and out, but still I remained overweight. ...

  • Operation:

    Feb. 14 the day of surgery, I am warmly welcomed and shown around. I still get to freshen up in my room and dress myself. I am picked up and moved to the OR. Here the surgeon is still calmly telling everything. I feel ...

Do you want to know if you qualify for gastric bypass surgery?

Follow these steps:

  • Step 1

Do the Quick Scan

Complete the Quick Scan and quickly find out if you are a candidate for gastric bypass surgery.

  • Step 2

Going through your journey

You will go through the process from screening to the guidance of a Lifestyle coach in the after process.

  • Step 3

Go through life healthy

Now it’s up to you! Together with one of our lifestyle coaches, you will maintain a healthy lifestyle and have the most results and enjoyment from your gastric reduction.