What you will find here
The treatment pages of this guide explain the operations, eligibility, cost and the pathway. The knowledge base goes deeper into the questions people ask once they are seriously considering surgery or have already had it: how alcohol affects you after a bypass, what dumping feels like, how to plan a pregnancy, how to eat and exercise, what the psychological screening involves and how the quality of Dutch centres is monitored.
Every article is written for readers in the Netherlands, including expats and international residents, and follows the same structure: a direct answer first, key facts, tables, ten frequently asked questions and the sources used.
How the knowledge base is built
Every figure comes from a named source: patient information from Dutch centres such as Vitalys (Rijnstate), WeightWorks and Ziekenhuis Rivierenland, the DATO annual report of the Dutch Institute for Clinical Auditing, the Dutch surgical guideline and, for alcohol, Belgian specialists at Ghent University Hospital and the Druglijn. Where Dutch terms matter, such as eigen risico (mandatory deductible) or huisarts (GP), they are explained.
The articles do not replace advice from your GP or bariatric team. They are meant to help you prepare better questions, understand what your team tells you and know what to expect in each phase: before surgery, in hospital, during recovery and in the years after.
Start here
New to the topic? Begin with the types of weight loss surgery, the eligibility criteria and cost and insurance. Already on the waiting list? Read about the psychological screening and the hospital stay. Had surgery? The articles about diet, exercise and dumping are most useful in the first year.
Why an English knowledge base?
Thousands of internationals live and work in the Netherlands, and many of them are covered by Dutch basic health insurance. The Dutch system works differently from many other countries: the GP is the gatekeeper, the mandatory deductible applies, and bariatric surgery is concentrated in twenty certified centres. Much reliable information is only available in Dutch. This knowledge base brings it together in English, with links to the Dutch source pages where relevant.
If you cannot find your question here, look at the Dutch knowledge base, which covers more topics, or contact us by phone or email. We are an independent information website, and we welcome suggestions for new topics by email or by phone at any time.
All articles
- Alcohol after weight loss surgery — Why alcohol hits harder after a gastric bypass, the risk of alcohol problems, what Belgian and Dutch specialists advise and how to handle social drinking.
- Dumping syndrome — What dumping syndrome after a gastric bypass feels like, which foods trigger it, how long it lasts and what helps, based on Dutch hospital advice.
- Type 2 diabetes and weight loss surgery — How weight loss surgery affects type 2 diabetes, why the gastric bypass is the first choice, who qualifies from BMI 30 and why type 1 diabetes is not cured.
- Pregnancy after weight loss surgery — Pregnancy after a gastric bypass or sleeve: when it is safe, folic acid and vitamins, healthy weight gain, contraception and what to do with a gastric band.
- Exercise after weight loss surgery — When can you exercise after weight loss surgery? Walking, sport after two weeks, weights after six, swimming and the lifting limit.
- Diet after weight loss surgery — How to eat after weight loss surgery: clear fluids, liquid, puréed and solid phases, six small meals, the half-hour rule and what to avoid.
- Hospital stay — How long you stay in hospital after weight loss surgery in the Netherlands, what happens between surgery and discharge, and what to bring.
- Is weight loss surgery major surgery? — Is weight loss surgery a major operation? What the operation involves, the real risks, recovery time and why the pathway around it is the demanding part.
- Regret after weight loss surgery — Why some people regret weight loss surgery, how common it is, when it passes, and what you can do: dietitian, psychologist, peer support and revision.
- Weight loss medication vs surgery — Weight loss injections or weight loss surgery? Dutch coverage for medication, Mounjaro, stopping, and when surgery is better.
- Psychological screening — What the psychological screening before weight loss surgery involves, why you may not yet qualify, and how to prepare, for Dutch and expat patients.
- DATO certification — What DATO is, which standards the 20 Dutch bariatric centres must meet, what the 2024 figures show and how to use them when choosing a centre.
- Weight loss surgery over 60 — Can you have weight loss surgery over 60 in the Netherlands? Age limits used by Dutch centres, extra checks, bones and medication.
- Children and teenagers — Can teenagers have weight loss surgery in the Netherlands? Why 18 is the minimum, which help exists for children, and what parents can do.
- Sleep apnoea — Sleep apnoea and weight loss surgery: why it counts for eligibility, why to bring your CPAP, and why never to stop CPAP without a new test.
- Metabolism after surgery — How metabolism changes after weight loss surgery: muscle loss, protein, strength training, the set point and habits that last.
- Endoscopic options — Non-surgical, endoscopic weight loss options in the Netherlands: gastric balloon, the Elipse balloon and POSE. Providers, criteria and cost.
- Long-term results — What happens 10 to 20 years after weight loss surgery: how well weight loss holds, regain, late deficiencies, internal hernia, kidney stones and gallstones.
- What not to eat — Foods, drinks and medicines to avoid after weight loss surgery: sugar, fat, alcohol, drinking with meals, NSAIDs, regular multivitamins and fasting.
- Dutch health insurance — How Dutch health insurance covers weight loss surgery: basic package, deductible, natura versus restitution, contracted centres and switching.
- Lifetime cost — What weight loss surgery really costs over the years in the Netherlands: deductible, vitamins, check-ups, skin surgery, clothing and self-pay options.
- Mental health — How weight loss surgery affects mental health: screening, the first months, body image, alcohol risk and where to find support.
- Technology and AI — How technology is used in Dutch weight loss surgery care: apps, online information sessions, digital questionnaires, DATO data and using AI tools wisely.
Frequently asked questions
No. It is general information based on Dutch hospital patient information, the DATO register and the Dutch surgical guideline. Always discuss your situation with your GP or bariatric team.
Yes. Every English article has a Dutch counterpart in the Dutch knowledge base, linked at the bottom of each page.
The articles were last reviewed in September 2026. Figures such as the deductible and DATO results are updated when new data is published.
Also available in Dutch. Author: Gijs Bodenstaff. Last reviewed: September 2026.