What are you doing wrong if losing weight isn't working?

Weight loss fails because most people underestimate one or more factors that block weight loss, even when they stick to a diet. A calorie deficit is the foundation, but sleep, stress, hormones and eating behaviour also help determine whether that deficit actually leads to weight loss. This article answers the most frequently asked questions about why weight loss stagnates and what actually works.

Why are you not losing weight despite a calorie deficit?

A calorie deficit is a necessary condition for weight loss, but not a guarantee. The body adapts to a lower calorie intake by slowing down the metabolism, producing more hunger hormones and burning less energy. This makes it increasingly difficult to lose weight, even if you are eating less than before.

In addition, the accuracy of calorie estimation plays a major role. Research consistently shows that people structurally underestimate their calorie intake, sometimes by twenty to forty per cent. Sauces, drinks, small snacks between meals and portion sizes are rarely tracked accurately. Anyone who thinks they are on 1,500 calories a day is often actually above that.

Furthermore, hormones such as insulin, leptin and ghrelin influence how the body stores fat and when feelings of hunger occur. In people who are overweight or obese, these hormones often function differently, meaning that the feeling of fullness occurs later or less strongly. This is not a lack of willpower, but a physiological mechanism.

What common mistakes sabotage your weight loss?

The most common mistakes when losing weight are too little sleep, too much stress, insufficient protein in the diet and too little movement outside of exercise. These factors are often overlooked, even though they have a direct impact on fat storage, muscle retention and eating behaviour.

An overview of mistakes that undermine weight loss:

• Not enough sleep. Sleep deprivation increases the hunger hormone ghrelin and decreases the satiety hormone leptin. Anyone who consistently sleeps less than seven hours has a bigger appetite and less control over eating behaviour.
• Chronic stress. Cortisol, the stress hormone, stimulates fat storage around the abdomen and increases cravings for high-calorie foods.
• Too little protein. Proteins provide satiety and protect muscle mass during a calorie deficit. A low-protein diet more often leads to muscle loss than fat loss.
• Focusing only on sport. Exercise is important, but it burns fewer calories than most people think. Diet has a much greater impact on the overall energy balance.
• Yo-yo dieting. Repeatedly dieting strictly and then letting go again trains the body to store fat more efficiently as soon as intake increases.

How does a busy life affect your ability to lose weight?

A busy lifestyle makes consistent weight loss significantly harder, because the factors that support weight loss, such as regular meals, enough sleep and exercise, are the first to be compromised under time pressure. People with a hectic schedule more often eat irregularly, choose convenience over nutritional value and exercise less outside of planned sports sessions.

Eating irregularly disrupts blood sugar levels, leading to energy dips and increased cravings for fast carbohydrates. Eating out or ready meals often contain more calories than home-cooked meals without this being obvious. At the same time, work stress causes higher cortisol levels, which promotes fat storage.

For people with busy lives, consistency is the biggest stumbling block. Small, achievable adjustments work better than rigid diet plans that fail at the very first busy week. Think of regular eating times, simple meal prep and conscious choices when eating out, rather than a completely new lifestyle programme.

When is medical guidance for weight loss useful?

Medical guidance for weight loss is useful when someone has repeatedly tried to lose weight without success through diet and exercise, or when being overweight is accompanied by health issues such as high blood pressure, elevated blood sugar or joint problems. In those cases, physiological factors may play a role that are difficult to overcome without medical support.

A doctor can assess whether there are underlying causes, such as thyroid problems or insulin resistance, and whether medical support is appropriate. Medical guidance is not a replacement for lifestyle change, but can help kick-start a process that is then easier to maintain.

It is important to know that not everyone is eligible for medically supervised treatments. A doctor assesses on an individual basis whether a treatment is medically sound, based on medical history, weight and other factors.

What is the difference between losing weight with and without medication?

Losing weight without medication relies entirely on behavioural change: eating fewer calories, exercising more, and adjusting lifestyle habits. Weight loss with medication adds a physiological component that can support the process, for example by reducing the feeling of hunger or influencing the metabolism. Medication does not replace lifestyle change, but it can make it easier to maintain those changes.

GLP-1 medication is an example of a class of agents that can be used for weight loss. This medication works via the hormonal mechanism that regulates satiety, causing people to experience less hunger and eat less. Results vary per person and depend on how the treatment is combined with dietary and exercise habits.

Weight loss medication is always prescription-only and requires a prior medical assessment. It is not an over-the-counter remedy and may only be prescribed by a doctor who is familiar with the patient's situation. Anyone considering medication would do well to discuss this through an approved medical pathway.

How do you start a medically supervised weight loss programme in the Netherlands?

A medically supervised weight loss journey in the Netherlands starts with an intake consultation with a doctor or via a recognised telehealth platform. The doctor assesses the health situation, weight and medical history to determine whether treatment is appropriate and safe. Following approval, medication can be prescribed and delivered via a pharmacy.

The process typically takes place in steps: a medical questionnaire, assessment by a GMC-registered doctor, any necessary approval and prescription issuance, and delivery via a partner pharmacy. Not everyone is eligible. The doctor decides independently and autonomously whether a treatment is medically justifiable for the individual concerned.

Anyone considering such a process can also to look at how the process works before an intake is started, so that expectations are realistic regarding lead time, costs and what the treatment does and does not involve.

How Wellumo helps with weight loss that isn't working

Wellumo offers medical guidance for people who are not losing weight despite their own efforts and want to know whether a medical pathway is suitable for them. The platform works exclusively with BIG-registered doctors who assess every application independently.

What Wellumo offers:

• A digital medical intake that can be completed discreetly and easily at home
• Assessment by a BIG-registered doctor within 24 hours on weekdays
• Potential guidance with GLP-1 medication, following medical approval
• Transparent pricing information beforehand, with no hidden costs
• Discreet delivery via a certified pharmacy partner
• A 45-day refund policy on selected treatment pathways

Not everyone is eligible. A doctor assesses on an individual basis whether a treatment is medically sound. Would you like to know if a medically supervised weight-loss programme suits your situation? Start the Medical intake at Wellumo or take Contact us for more information.