The Condition Your Doctor May Not Be Testing For
You are gaining weight around your midsection despite eating carefully. You crash after meals, craving sugar within hours of eating. Your energy fluctuates wildly throughout the day. Your blood sugar is “normal” – but something is clearly not right. Welcome to insulin resistance, the metabolic condition that affects an estimated 30-40% of the adult population and is the precursor to type 2 diabetes, cardiovascular disease, and a host of other chronic conditions.
At our practice in Zürich Seefeld, I consider insulin resistance one of the most important conditions to detect early – because it is reversible when caught in time, yet devastating when left to progress.
What Is Insulin Resistance?
Insulin is the hormone your pancreas produces to help cells absorb glucose from the blood. In insulin resistance, your cells become less responsive to insulin’s signal. The pancreas compensates by producing more insulin – so blood sugar stays normal for years while insulin levels silently climb. It is the elevated insulin, not the blood sugar, that drives the damage. By the time blood sugar rises enough to diagnose prediabetes or diabetes, insulin resistance has been present for a decade or more.
Why Standard Screening Misses It
Standard diabetes screening checks fasting glucose and HbA1c. These only become abnormal once the pancreas can no longer compensate – a late stage. Fasting insulin, which would detect the problem years earlier, is rarely tested. This is why I always include fasting insulin and calculate HOMA-IR (a measure of insulin resistance) in metabolic assessments.
Signs and Symptoms
Insulin resistance often has no obvious symptoms in its early stages, which is why testing matters. As it progresses, common signs include abdominal weight gain (visceral fat), fatigue after meals, sugar and carbohydrate cravings, difficulty losing weight despite caloric restriction, skin tags, acanthosis nigricans (dark, velvety patches on the neck, armpits, or groin), elevated triglycerides with low HDL, high blood pressure, and in women, PCOS symptoms.
What Insulin Resistance Leads To
Unaddressed insulin resistance progresses to prediabetes, type 2 diabetes, cardiovascular disease, non-alcoholic fatty liver disease (NAFLD), PCOS, Alzheimer’s disease (sometimes called “type 3 diabetes”), certain cancers, and accelerated ageing. The good news: at the insulin resistance stage, this progression is largely preventable.
Our Diagnostic Approach
I test fasting glucose, fasting insulin, HOMA-IR calculation, HbA1c, complete lipid panel (particularly the triglyceride-to-HDL ratio), uric acid, liver enzymes (ALT elevation suggests fatty liver), hsCRP, and waist circumference. Sometimes an oral glucose tolerance test with insulin measurements provides additional insight.
What We Do: Reversing Insulin Resistance
Dietary transformation: Reducing refined carbohydrates and sugar, increasing healthy fats, protein, and fibre, and focusing on foods with low glycaemic impact. This is not about calorie counting – it is about changing what you eat to change how your body processes fuel.
Exercise prescription: Both resistance training and aerobic exercise improve insulin sensitivity through independent mechanisms. Resistance training is particularly powerful because muscle is the primary site of glucose disposal.
Targeted supplementation: Berberine, chromium, alpha-lipoic acid, magnesium, and inositol all have evidence for improving insulin sensitivity.
Sleep optimisation: Even modest sleep deprivation worsens insulin resistance. Addressing sleep quality is a non-negotiable part of treatment.
Stress management: Cortisol directly antagonises insulin. Managing chronic stress improves insulin sensitivity measurably.
Medication when needed: Metformin may be considered for patients with significant insulin resistance who need additional support alongside lifestyle measures.
Conclusion
Insulin resistance is common, silent, and dangerous – but entirely reversible when caught early. If you have risk factors or symptoms, a simple fasting insulin test can reveal the truth that standard screening misses. Book a metabolic assessment at our practice in Zürich Seefeld and take control of your metabolic health before diabetes takes control of you.
