How do you know if you have insulin resistance that is blocking weight loss?

Insulin resistance can be a major reason why weight loss fails, even if someone eats less or exercises more. With insulin resistance, the body responds less effectively to insulin, meaning glucose is absorbed less efficiently by the cells and the body stores more fat. The following sections cover the symptoms, how insulin resistance is diagnosed, and when medical supervision is useful.

Why does insulin resistance make losing weight so difficult?

Insulin resistance makes losing weight difficult because the body produces more insulin to process glucose, and high insulin levels stimulate fat storage while inhibiting fat burning. The result is a metabolic environment in which the body retains energy rather than burning it, even in a calorie deficit.

Normally, insulin signals cells to absorb glucose from the blood as fuel. In insulin resistance, muscle, liver and fat cells respond less effectively to that signal. The pancreas compensates by producing increasing amounts of insulin. This chronically elevated insulin level has two direct consequences for weight:

• Fat storage is stimulated. Insulin is a storage hormone. High levels signal the body to store excess energy as fat, particularly around the abdomen.
• Fat burning is blocked. As long as insulin levels remain high, the body can hardly switch to fat burning as an energy source.

Moreover, insulin resistance is often accompanied by fluctuating blood sugar levels, which lead to intense hunger and energy crashes. This makes it harder to consistently make healthy choices. People who fail to lose weight despite their efforts sometimes feel that their body is working against them. In the case of insulin resistance, that is in a sense true: the hormonal environment actively works against weight loss.

What are the most common symptoms of insulin resistance?

The most common symptoms of insulin resistance are persistent fatigue, strong cravings for sugar or carbohydrates, difficulty losing weight despite dieting, a large belly and concentration problems. Many people do not recognise insulin resistance because the symptoms are vague and also occur with other conditions.

Concrete signs that may point to insulin resistance include:

• Fatigue after meals, even after a relatively light meal
• Strong craving for sweets or carbohydrates, especially in the afternoon
• Stubborn belly fat, even with weight loss elsewhere
• Dark discoloration of the skin in skin folds or on the neck (acanthosis nigricans)
• Fluctuating energy levels throughout the day
• Raised blood pressure or elevated triglycerides on blood tests

It is important to emphasise that none of these symptoms on their own constitutes a diagnosis. Recognising insulin resistance on the basis of symptoms alone is not reliable. A doctor can assess whether there is actually a disrupted insulin metabolism based on blood tests.

How is insulin resistance diagnosed by a doctor?

Insulin resistance is diagnosed via a blood test. A doctor looks at fasting blood sugar levels, insulin levels and sometimes the HOMA-IR score, a calculation that shows the ratio between glucose and insulin. Additionally, triglycerides, HDL cholesterol and HbA1c can be measured.

There is not a single standard test that definitively demonstrates insulin resistance. In practice, a doctor uses a combination of measurements and clinical assessment:

• Fasting blood glucose: A raised fasting blood sugar level can indicate impaired glucose regulation.
• Fasting insulin level: A high insulin level with normal blood sugar is an early sign of insulin resistance.
• HOMA-IR: This calculation combines glucose and insulin and gives an indication of the degree of resistance.
• HbA1c: This shows the average blood sugar level over the past two to three months.
• Lipid profile: High triglycerides and low HDL cholesterol are often present in insulin resistance.

In addition to blood test results, a doctor also takes physical characteristics into account, such as waist circumference and blood pressure. Testing for insulin resistance is therefore a combination of laboratory investigation and clinical assessment, not a simple self-test.

Can insulin resistance be reversed or treated?

Treating insulin resistance is possible in many cases. Lifestyle changes such as more exercise, fewer refined carbohydrates and sufficient sleep can significantly improve insulin sensitivity. In some cases, a doctor may consider additional treatments, depending on the severity and the underlying cause.

The most effective approach focuses on the factors that sustain insulin resistance:

Lifestyle as a basis

Regular physical exercise, particularly strength training and walking after meals, increases the uptake of glucose by muscles without the need for insulin. A diet with fewer fast-acting sugars and more fibre reduces insulin spikes after meals. Adequate sleep and stress reduction are also relevant, because sleep deprivation and chronic stress negatively affect insulin sensitivity.

Medical treatment options

When lifestyle changes do not produce sufficient results, a doctor may consider additional treatments. Which options are appropriate depends on the individual situation and is always assessed by a doctor. Not everyone with insulin resistance needs medication, but for some people, medical support can help break the cycle of weight gain and worsening insulin sensitivity.

When is medical supervision necessary for insulin resistance?

Medical supervision for insulin resistance is necessary when lifestyle changes are insufficiently effective, when blood test results worsen, or when there are additional symptoms such as high blood pressure or severe overweight. A physician can assess whether additional treatment is appropriate and responsible.

People who do not lose weight despite adjustments to diet and exercise, or whose blood tests persistently show abnormal values, would do well to consult a doctor. Insulin resistance can develop into pre-diabetes or type 2 diabetes if left untreated, which underlines the urgency of timely guidance.

Signs that professional guidance is worthwhile:

• Weight loss is not working despite consistent effort and dietary adjustments
• Blood glucose or HbA1c is above the normal limits
• There is a combination of belly fat, high blood pressure and raised triglycerides
• Symptoms of fatigue and energy dips affect daily functioning

How Wellumo helps with weight loss in insulin resistance

For people for whom losing weight is not working Despite effort, Wellumo offers an accessible way to start medical guidance. Through a digital intake process, a BIG-registered doctor assesses the individual situation and determines whether treatment is appropriate and safe. This is how it works:

• Complete a medical questionnaire via the online intake
• A doctor will assess the application within 24 hours on working days
• Upon approval, the doctor will issue a prescription, which will be processed by a certified pharmacy
• Medication is delivered discreetly to your home, with an optional subscription service for repeat deliveries.
• Prices are communicated transparently in advance

Not everyone is eligible for treatment. A doctor assesses per person whether guidance is medically justifiable. Results vary per person. Would you like to know if a treatment programme could be suitable? Read more about How Wellumo works of Contact us for more information.