Week 1
Getting to know GLP-1
How GLP-1 works in the body, what to expect and why lifestyle change always remains the foundation.
GLP-1 & side effects
For healthcare providers
Medically supervised weight treatment for your clients
Lean Clinic offers a complete support programme alongside obesity medication. With coaching, lifestyle modules, medical supervision and progress reports.
Clinical results
Measurable health gains
Results based on our current client population, measured continuously through weekly check-ins.
Avg. weight loss
-16.0kg
After 8 months of treatment
Blood pressure drop
-24mmHg
Systolic, average
Waist reduction
-10.9cm
Average decrease
The support programme
More than prescribing medication
Your clients get a complete programme that combines medication with online lifestyle coaching. That is how we secure lasting results.
Personal lifestyle coaching
Every client gets access to a lifestyle coach and an online programme. We work on behaviour change around nutrition, movement and mindset.
Medical supervision
Every treatment starts with a video consultation with a registered doctor. Medication is monitored continuously and adjusted where needed.
Evidence-based lifestyle modules
An extensive knowledge base with modules on nutrition, movement, sleep, stress and the psychology of eating behaviour. Based on scientific research.
Private community
Clients support each other in a moderated community guided by the care team. Peer support strengthens treatment results.
What the program covers
A comprehensive program, clinically grounded
More than lifestyle alone. Your clients receive evidence-based content on GLP-1 side effects, sarcopenia prevention, relapse prevention and the maintenance phase. Exactly what lasting results and treatment adherence require.
- weeks
- 52
- modules
- 200+
- slides
- 2000+
Themes we cover
- GLP-1 & side effects
- Nutrition & muscle preservation
- Emotional eating & mindset
- Stigma & social pressure
- Relapse & maintenance
- Sleep, stress & recovery
- Movement & strength
- Identity & behaviour
Examples from the curriculum
Modules that make the difference
Week 3
Protecting muscle mass
Sarcopenia prevention is front and center. Practical guidance on strength training and protein intake during weight loss.
Nutrition & muscle preservation
Week 1
Managing side effects
Which side effects are normal, what to watch out for, and how lifestyle advice can help reduce symptoms.
GLP-1 & side effects
Week 4
Dealing with judgment and stigma
Practical tools for navigating stigma and misunderstanding from those around you, essential for staying on track.
Stigma & social pressure
Week 14
Recognising and recovering from setbacks
Relapse prevention: identifying risky situations, practising self-compassion, and moving forward after a tough moment.
Relapse & maintenance
Week 16
The maintenance phase
Preparing for the transition from active weight loss to maintenance. Habits that stick.
Relapse & maintenance
Week 13
Macro and micronutrients
The role of carbohydrates, proteins and fats, and why vitamins and minerals deserve extra attention with GLP-1.
Nutrition & muscle preservation
Week 38
Muscle as a metabolic engine
Why muscle mass is your most important long-term protection and how to prevent it from declining.
Nutrition & muscle preservation
Week 32
When hunger returns
What to expect as appetite or hunger gradually comes back: a physiological response, not a sign of relapse.
GLP-1 & side effects
Safety & quality
Several layers of checks for every client
Not everyone is suitable for our programme. Every client goes through a strict screening process before any medication is prescribed.
Step 1
Medical questionnaire
A thorough medical history covering contraindications, medication use and prior conditions.
Step 2
Medication review
Check for interactions with the client's current medication.
Step 3
Identity verification
Verification with an identity document before the consultation.
Step 4
Video consultation with a doctor
A personal consultation with a BIG-registered doctor for assessment and prescription.
Step 5
Medication monitoring
Ongoing monitoring of side effects, effectiveness and dosage through the LSP.
The care team
Dutch doctors and coaches
Your clients are supported by Dutch doctors and experienced lifestyle coaches. Every treatment starts with a personal video consultation.
Sitsi
GP
BIG: 69915535001
AGB: 84110254
Ingrid
Doctor
BIG: 99055246501
AGB: 84100204
Sahira
Doctor
BIG: 29909891001
AGB: 84135289
Rashiv
Doctor
BIG: 79936861601
AGB: 84132943
Galina
Doctor
BIG: 99932007001
AGB: 84123473
Andreas
Lifestyle coach
Co-founder
AGB: 90121662
Jake
Lifestyle coach
Co-founder
CEO
Dutch experts in obesity and health.
Active monitoring
We review every check-in. When something comes up, we respond personally.
Every client fills in a digital check-in each week: weight, how they feel and any side effects. Our team reads them one by one. When there are side effects, a bad week or unusual values, we get in touch straight away with concrete advice.
- Responding to side effects with concrete advice
- Following up when things are not going well
- Consulting the doctor about dose adjustments
- Flagging weight loss that is too slow or too fast
M
Marieke · Week 3
Check-in submitted Tue 14 Apr
Weight
94.2 kg
Feeling
So-so
Side effects
Nauseous
“Since my injection on Friday I've been very nauseous. Especially in the morning and after eating.”
Andreas · Lifestyle coach
Replied Tue 14 Apr
“I'm sorry to hear that, Marieke. Nausea is more common in the first weeks. Tips that usually help: smaller portions, not eating too much fat and 1.5 to 2 litres of water a day. Can you manage that? If it isn't better next week, I'll talk to your doctor about lowering the dose.”
Medication information
Information about GLP-1 medication
Sourced information about all available and upcoming GLP-1 medication.
View the overviewAvailable medicines
Wegovy, Ozempic, Mounjaro, Saxenda and other GLP-1 medication.
Active substances
Semaglutide, tirzepatide, liraglutide and how they work.
Comparisons
Direct comparisons of effectiveness and side effects.
In development
Experimental medicines in clinical trials.
Progress reports
Detailed reports for your records
On request, you receive a structured progress report on the client you referred. With weight trend, blood pressure, waist circumference and treatment duration in a clear format.
- Weight, BMI and waist circumference over the treatment period
- Blood pressure and other vital signs
- Medication overview and dose adjustments
- Progress in lifestyle modules and coaching
Ask your client for access
JV
Progress report
Treatment started: February 2026
Weight (kg)
Systolic blood pressure (mmHg)
Waist circumference (cm)
Total lost
-11.1 kg
Current BMI
28.4
Treatment duration
6 mo
Referral
Refer a client
Fill in the form and your client will immediately receive an invitation to sign up with Lean Clinic.
Blog about medical weight loss
Read our articles about medical weight loss, lifestyle, nutrition, medication, obesity, exercise and healthy living.
Wegovy pil goedgekeurd in Europa: de eerste GLP-1 pil voor gewichtsbeheersing
De Europese Commissie heeft de Wegovy pil goedgekeurd als eerste GLP-1 pil voor gewichtsbeheersing in de EU. Wat is er precies goedgekeurd en wanneer komt de pil naar Nederland?
Orforglipron (Foundayo): wat de GLP-1-pil kan en wanneer hij hier is
De FDA keurde orforglipron op 1 april 2026 goed als Foundayo, de eerste GLP-1-pil zonder eet- of drinkvoorschriften. Wat de ATTAIN-studies laten zien, welke bijwerkingen erbij horen en wanneer het middel in Nederland te verwachten is.
Ontsteking en obesitas: waar start de vicieuze cirkel?
Een diepgaande blik op de complexe relatie tussen obesitas en chronische ontsteking, hoe ze elkaar versterken, en hoe leefstijl en nieuwe behandelingen zoals GLP-1 medicatie deze cirkel kunnen doorbreken.