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What is medical weight loss and how exactly does it work?

  • 24 July 2026
Friendly illustration of scales with a stethoscope, surrounded by health icons such as vegetables and a glass of water.

Medical weight loss is a treatment plan in which a doctor assesses whether medication can contribute to weight loss, and medically supervises the patient throughout that process. It differs from independent dieting in that a BIG-registered doctor is involved in the assessment, prescription of medication, and follow-up. The questions below explain what this treatment plan entails, who it is suitable for, and what someone can realistically expect.

Welke medicatie wordt er gebruikt bij medisch afvallen?

In the Netherlands, medical weight loss primarily uses GLP-1 medication. These are treatments that affect hormones involved in hunger and satiety. They slow down stomach emptying, reduce appetite, and help regulate blood sugar levels. As these are prescription-only medications, a medical assessment is always required before a prescription is issued.

GLP-1 stands for glucagon-like peptide-1, a hormone that the body naturally produces after eating. Medication in this category mimics or enhances that effect. As a result, people experience less cravings and eat less on average, without it being accompanied by a constant feeling of hunger. This makes it easier for some people to maintain a calorie deficit.

Not everyone is eligible for this medication. A doctor will assess on an individual basis whether its use is medically advisable, based on factors including weight, health history, and any other medication.

Medical weight loss is suitable for individuals who are overweight or obese and have other health conditions that are related to their weight, such as diabetes, high blood pressure, or sleep apnoea. It is also

Medical weight loss with medication is generally intended for overweight or obese individuals for whom lifestyle changes have not yielded sufficient results. A doctor assesses on a case-by-case basis whether treatment is appropriate. There are no general rules that apply to everyone: suitability depends on individual medical factors.

Factors that a doctor takes into account in the assessment include Body Mass Index (BMI), pre-existing conditions such as diabetes or cardiovascular disease, the use of other medication and the overall health situation. People with certain conditions or a specific medical history may not be eligible.

Medical weight loss is not a solution for people who want to lose a few pounds for a holiday or event. It is a programme intended for individuals for whom being overweight has a serious impact on their health or quality of life, and who are prepared to address this with medical guidance and attention to lifestyle.

Here is a step-by-step breakdown of a medical waste management process: 1. **Segregation:** This is the first and most critical step. Medical waste is separated at the point of generation (e.g., patient room, laboratory, operating theatre) into different categories based on its type and potential risk. Common categories include: * **Infectious waste:** Contaminated with pathogens (e.g., used bandages, swabs, cultures). * **Pathological waste:** Human tissues, organs, body parts. * **Sharps:** Needles, syringes, scalpels, broken glass. * **Chemical waste:** Discarded chemicals, disinfectants, laboratory reagents. * **Pharmaceutical waste:** Expired or unused medicines. * **Genotoxic waste:** Waste containing substances with genotoxic properties (mutagenic, teratogenic or carcinogenic). * **Radioactive waste:** Waste contaminated with radioactive substances. * **General/Non-hazardous waste:** Similar to household waste, such as paper, packaging, food scraps from non-infectious areas. 2. **Collection:** Once segregated, waste is collected from its point of generation using designated containers. These containers are colour-coded and clearly labelled according to the type of waste they contain. For example: * Yellow bags or containers for infectious and pathological waste. * Red, puncture-proof containers for sharps. * Special containers for chemical, pharmaceutical, and radioactive waste. * Black or green bags for general waste. 3. **Storage:** Collected waste is temporarily stored in a designated, secure area within the healthcare facility. This storage area should be: * Clearly marked and inaccessible to unauthorised personnel. * Well-ventilated and away from food preparation areas. * Equipped with measures to prevent leaks or spills. * Appropriately refrigerated for pathological waste if it's to be stored for an extended period. 4. **Transport (On-site):** Waste is transported from the storage area to a central processing/disposal site within the healthcare facility or taken to a waiting point for external collection. This is often done using dedicated trolleys or carts to prevent contamination of other areas. 5. **Treatment:** This is a crucial phase to render the waste safe and reduce its hazardous potential. Treatment methods vary depending on the waste category and include: * **Autoclaving (Steam Sterilisation):** The most common method for infectious and pathological waste. High-pressure steam kills microorganisms. * **Incineration:** Burning waste at high temperatures. Effective for pathological, pharmaceutical, and some chemical waste, but requires careful control of emissions. * **Chemical Disinfection:** Using chemicals to kill pathogens, often used for liquid waste or smaller volumes. * **

A medical waste management process begins with a medical intake, where a doctor assesses the patient's condition before any medication is prescribed. After approval, the doctor draws up a prescription, which is forwarded to a pharmacy. The pharmacy handles the delivery independently. Medical support remains available throughout the process.

In practice, a process generally follows these steps:

  1. Fill in medical questionnaire. The patient answers questions about health, weight, medication use, and lifestyle.
  2. Medical assessment. A BIG-registered doctor assesses the answers and determines whether treatment is medically justified.
  3. Recipe and delivery. Upon approval, the doctor will write a prescription. The pharmacy will review this and process the delivery.
  4. Support throughout the process. The patient is under medical supervision and can get in touch if they have any questions.
  5. Redelivery. For long-term use, a subscription for repeat deliveries is possible.

It is important to understand that medical weight loss is not a one-off purchase. It is a process of several months, during which consistency and lifestyle adjustments are an essential part of the result.

Medisch afvallen is een programma dat onder medisch toezicht staat. Het streeft ernaar om gewichtsverlies te bereiken en tegelijkertijd de algemene gezondheid van een persoon te verbeteren, met name degenen die kampen met obesitas of gezondheidsproblemen die verband houden met hun gewicht. Het kan gewichtsverliesmaatregelen omvatten zoals dieetveranderingen, lichaamsbeweging, gedragstherapie, medicatie of zelfs chirurgie. Een dieet is daarentegen een algemene term voor het voedsel dat iemand regelmatig eet. In de context van gewichtsverlies verwijst "een dieet" meestal naar een specifiek plan dat is ontworpen om te helpen bij het afvallen door de calorie-inname te beperken of door bepaalde voedingsmiddelen uit te sluiten. Dit is niet noodzakelijkerwijs onder medisch toezicht en kan door een individu op eigen houtje worden gevolgd.

The main difference between medical weight loss and dieting is the involvement of a doctor and the use of prescription medication. With a diet, an individual independently adjusts their eating habits. Medical weight loss combines this with medication that influences the physiological processes surrounding hunger and satiety, under medical supervision.

A diet works primarily through behavioural change: eating less, eating differently, moving more. This requires a high degree of discipline and is difficult for many people to sustain, especially with a busy life. Medical weight loss adds a biological component: the medication reduces appetite on a physiological level, making it easier to eat less without constantly experiencing hunger.

This does not mean that lifestyle does not matter in medical weight loss. On the contrary: medication works best in combination with adjustments to diet and exercise. Those who see medication as a replacement for lifestyle changes will find the results disappointing or unsustainable.

What results can be realistically expected from medical weight loss?

Results with medical weight loss vary from person to person and depend on factors such as the medication used, dosage, lifestyle, and individual physiology. There are no guarantees that can be given about how much someone will lose. What is known is that GLP-1 medication, in combination with lifestyle adjustments, contributes to weight reduction in many people.

Realistic expectations are important. Medical weight loss is not a quick fix. It is a journey that takes time, with the first results typically only appearing after a few weeks. Furthermore, weight loss is not always linear: there can be periods where weight plateaus.

Sustainable results require more than just medication. People who simultaneously work on their eating habits, sleep, and exercise generally achieve better and longer-lasting results than those who rely solely on medication. A doctor can help set realistic goals and monitor progress.

Is medical weight loss safe and what are the side effects?

Medical weight loss via a recognised programme with BIG-registered doctors and certified pharmacies is set up in a medically responsible manner. Prescription medication is never provided without a medical assessment. That does not preclude GLP-1 medication from having side effects, which vary in nature and severity from person to person.

Common side effects of GLP-1 medication include gastrointestinal complaints such as nausea, diarrhoea, or constipation. These primarily occur in the initial phase of use and decrease for many people as the body adjusts to the medication. More serious side effects are rarer, but a doctor always discusses the risks as part of the assessment.

Safety begins with a thorough consultation. Individuals with certain conditions or a specific medical history are not eligible for this type of medication. This is precisely why a prior medical assessment is mandatory: not to create obstacles, but to ensure the treatment is only initiated in individuals for whom it is advisable.

How Wellumo helps with medical weight loss

Wellumo offers a completely digital journey for individuals who wish to lose weight under medical supervision. The process is designed with meticulous attention to detail, transparency, and discretion. This is how it works:

  • Online medical intake. Via Medical questionnaire the situation is mapped out so that a doctor can make a responsible assessment.
  • Assessment by a BIG-registered doctor. A doctor independently assesses the request and decides if treatment is suitable. Not everyone is eligible.
  • Prescription via certified pharmacy. Upon approval, the prescription will be sent to a partner pharmacy, which will independently assess and process the delivery.
  • Discreetly sent. Medication is delivered discreetly to your home, with the option for a subscription for repeat deliveries.
  • Transparent pricing. Wellumo communicates prices in advance and clearly, with no hidden costs.

Would you like to know if a medical waste management process is right for you? Take a look How Wellumo works of neem contact us For more information. A doctor always assesses individually whether a treatment is medically justifiable.

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Frequently asked questions

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1) Choose your treatment on the website.
2) Complete the medical questionnaire.
3) A BIG-registered doctor will assess your application.
4) Upon approval, the doctor writes a prescription and releases the partner pharmacy.
5) We will deliver discreetly to your home (possibly in subscription form).

A doctor who is BIG-registered in the Netherlands. You can see the BIG number on this site and check it in the BIG register.

After medical approval and release by the pharmacy, shipment is usually 1-3 working days (excluding Sundays/Holidays). Refrigerated transport or delivery restrictions may affect.

No. Prescription drugs are never supplied without medical assessment and pharmacy release.

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How Wellumo works

Start my free check

Before you can place an order, we ask you to complete a medical questionnaire. Based on your answers, one of our doctors will assess which treatment best suits you.
  • 3 minutes

Choose and order your medication

Upon completion of the questionnaire, the most suitable medication(s) will be displayed. You select your desired medication and pay for it in advance. After ordering, one of our doctors will contact you within 24 hours (on weekdays). No approval? In that case, you will of course receive a full refund immediately.
  • 1 minute

Confirm your identity

We are required to verify your details, and we do this via ID verification. This is a simple and secure way to confirm your identity. Please ensure you have a valid ID ready: driving licence, passport, or ID card.
  • 1 minute

Contact with the doctor

One of our doctors will contact you personally. Upon approval, the prescription will be issued and we will send your medication to the specified address via our pharmacy.
  • Within 24 hours (on working days)

Medication delivery from our Pharmacy

Medication delivery is handled by our in-house pharmacy. With a subscription, we ensure that repeat prescriptions are always refilled on time. You can cancel at any time easily through your personal account.
  • 1-2 working days

Ondersteuning tijdens je persoonlijke traject

Through your personal account, you have access to many functionalities that will help you throughout the entire weight loss process. You also have easy contact with one of our doctors, and telephone contact is also possible, of course.

Start my free check

Before you can place an order, we ask you to complete a medical questionnaire. Based on your answers, one of our doctors will assess which treatment best suits you.
  • 3 minutes

Choose and order your medication

Upon completion of the questionnaire, the most suitable medication(s) will be displayed. You select your desired medication and pay for it in advance. After ordering, one of our doctors will contact you within 24 hours (on weekdays). No approval? In that case, you will of course receive a full refund immediately.
  • 1 minute

Confirm your identity

We are required to verify your details, and we do this via ID verification. This is a simple and secure way to confirm your identity. Please ensure you have a valid ID ready: driving licence, passport, or ID card.
  • 1 minute

Contact with the doctor

One of our doctors will contact you personally. Upon approval, the prescription will be issued and we will send your medication to the specified address via our pharmacy.
  • Within 24 hours (on working days)

Medication delivery from our Pharmacy

Medication delivery is handled by our in-house pharmacy. With a subscription, we ensure that repeat prescriptions are always refilled on time. You can cancel at any time easily through your personal account.
  • 1-2 working days

Ondersteuning tijdens je persoonlijke traject

Through your personal account, you have access to many functionalities that will help you throughout the entire weight loss process. You also have easy contact with one of our doctors, and telephone contact is also possible, of course.

This email address is already known

We have already found this email address in our system. Would you like to receive a 6-digit login code to log in and proceed?