About Go Leaner — Medical GLP-1 Clinic
The BIG-regulated GLP-1 clinic in Amstelveen and Aalsmeer that treats obesity as the chronic medical condition it is.
Obesity is not a character flaw. It is a chronic, neuro-metabolic condition that affects millions of Dutch citizens. Yet, in traditional healthcare, being overweight is still too often approached as a matter of willpower and discipline. At Go Leaner, we believe this approach is outdated, ineffective, and stigmatizing.
Our mission is to make evidence-based weight management accessible to everyone in the Netherlands. We combine clinically proven GLP-1 medication with personal medical guidance from board-registered physicians, certified lifestyle coaches and an in-house dietitian. With comprehensive blood testing we accurately map your health. We don't just focus on kilos, but on reducing centimeters, building a strong and lean body, improving health, and enhancing quality of life.
We accept no waiting lists, no judgment, and no half measures. Every patient deserves a personalized treatment plan, regular medical monitoring, and the support needed to maintain weight loss. Without the yo-yo effect.
At Go Leaner, a BIG-registered physician is central to every treatment. Here we introduce our medical director.
Dr. Britt Dekker
Medical Director & GLP-1 Specialist
- BIG number
- 59925703801
- AGB code
- 17257272
- Focus area
- Chronic weight management, obesity and metabolic health
Dr. Britt Dekker is a physician registered with the Dutch Ministry of Health, Welfare and Sport (BIG number 59925703801). As Medical Director at Go Leaner, she leads the clinical team at our Amstelveen and Aalsmeer clinics and oversees the protocols for GLP-1 treatment with semaglutide (Ozempic, Wegovy) and tirzepatide (Mounjaro).
Her approach is evidence-based and pragmatic: obesity is recognised as a chronic, neuro-metabolic condition rather than a failure of willpower. Every patient who starts with Go Leaner receives an individual care plan that addresses medication, nutrition, exercise and behaviour as a whole. Standard elements include a comprehensive intake with blood work, periodic review of dosing and side effects, and shared decision-making around tapering and maintenance.
Patient safety is the priority. Dr. Dekker adheres to contraindications as listed in the EMA product information and the Dutch College of General Practitioners (NHG) guidelines. She refers back to the patient's GP whenever clinically indicated and maintains her own continuing medical education through accredited courses in endocrinology and lifestyle medicine.
Our multidisciplinary medical team consists of board-registered physicians, dietitians, lifestyle coaches, sports psychologists, and exercise specialists — all specialised in chronic weight management and GLP-1 treatment.
Board-Registered Physician
Our board-registered physicians have extensive experience with chronic weight management and the metabolic effects of GLP-1 medication. Every patient receives personalized medical guidance tailored to individual health goals.
Dietitian
Our dietitians combine scientific nutritional knowledge with practical guidance. Go Leaner's nutritional protocol is specifically tailored to patients using GLP-1 medication, focusing on protein retention and micronutrients.
Lifestyle Coach
Our lifestyle coaches guide you through behavioral changes in nutrition, exercise, and mental health. They ensure you develop the habits needed for lasting results.
Sports Psychologist
Our sports psychologist specializes in motivation, behavioral patterns, and the mental side of weight loss. Using proven techniques, they help you overcome obstacles and stay motivated.
Exercise Specialist
Our exercise specialists create a medically responsible movement plan tailored to your health goals and physical condition. With a focus on muscle preservation during weight loss — a key concern during GLP-1 treatment — they guide you toward a stronger and healthier body.
Board-Registered
All our physicians are registered in the BIG register, the official quality register for Dutch healthcare providers. You are assured of expert, responsible medical care.
Proven Medication
We work exclusively with EMA- and FDA-approved GLP-1 medication. Semaglutide and tirzepatide have demonstrated average weight loss of 15-22% in large clinical trials.
Personal Guidance
No automated protocols. Each patient receives a personal physician and lifestyle coach who evaluate progress monthly, adjust dosage, and provide nutritional and exercise advice.
No Yo-Yo Effect
Our program focuses on sustainable weight loss. Through the combination of medication, behavioral coaching, and gradual tapering, we prevent the notorious yo-yo effect common with traditional diets.
2,000+
Patients treated
4.8/5
Average rating
15kg
Average weight loss
94%
Patient satisfaction