Lasting weight loss
by 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

Gastric Bypass

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

Explanation of treatment

Gastric Bypass (Stomach Bypass)

A gastric bypass or stomach bypass is an operation in which the stomach is reduced in size and the digestive tract rerouted. Literally, the term “gastric bypass” means a bypass of the stomach.

People with gastric bypass lose an average of 70 percent of their excess weight. Because part of the stomach is turned off, less hunger hormone is produced. As a result, when you eat, you feel full faster that also lasts longer. That helps you eat less and therefore you lose weight.

How does the surgery go?

After you are put to sleep, surgery begins. The surgeon first takes a good look at the inside of your abdomen. Then a piece of the stomach the size of an egg is cast off. The rest of the stomach just stays put and thus is not removed. The small intestine is connected to the reduced stomach. This creates a bypass (Bypass) in which the food does not come into contact with the digestive juices until much later. In this way, 200-250 cm of intestine is skipped. 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.

The differences with Gastric Sleeve:

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

Difference with Mini gastric bypass:

  • There is longer experience with classic gastric bypass than mini bypass. Long-term results are extensively known and show good results
  • Less chance of acidosis
  • Technically, the classic gastric bypass is slightly trickier, as one more connection is made than with the mini bypass

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:

    "After being diagnosed with diabetes and once again failing diet attempts, I made the choice to have gastric bypass surgery. At Weightworks Clinic, I immediately felt taken seriously. The surgeons are kind, accommodating and above all very knowledgeable. The rest of the staff ...

  • Operation:

    How my path walked to arrive at this trajectory? I was running under another clinic. But heard of WeightWorks so made the bold move and contacted them anyway also purely because it is in my hometown. I was able to get to WeightWorks very ...

  • Operation:

    After years of fighting the pounds, we made the decision to go for gastric bypass surgery. Initially we went to NOK but ended up at Weightworks through word of mouth. After we called for information, we were fortunately able to visit soon. We had ...

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.