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Insulin resistance is the metabolic condition where your cells become less responsive to insulin's signal to uptake glucose from the blood. To compensate, the pancreas produces more insulin — keeping blood sugar 'normal' while insulin levels quietly creep higher. This state of hyperinsulinaemia drives fat storage, inflammation, hormonal disruption, and — if uncorrected — eventually exhausts the pancreas and produces type 2 diabetes.
Key Signs and Symptoms
- Feeling tired after meals (post-meal energy crash)
- Persistent hunger despite eating enough
- Difficulty losing weight, especially belly fat
- Strong carbohydrate and sugar cravings
- Difficulty concentrating; brain fog
- Skin changes: dark patches in skin folds (acanthosis nigricans), skin tags
- Belly fat (visceral fat is both a cause and consequence of insulin resistance)
- In women: PCOS, irregular periods, elevated androgens
- High fasting triglycerides and low HDL cholesterol on blood tests
Evidence-Based Strategies
- Test for it: fasting insulin (ideally <8 uIU/mL); HOMA-IR score; fasting triglycerides and HDL ratio; HbA1c
- Diet overhaul: dramatically reduce refined carbohydrates and sugar; prioritise fibre, protein, and healthy fats following the insulin resistance guide principles
- Exercise: both strength training and Zone 2 cardio improve insulin sensitivity through different pathways — combine both
- Improve sleep: even partial sleep deprivation acutely induces insulin resistance; prioritise sleep quality through creatine for women principles
- Reduce stress: cortisol directly causes insulin resistance by mobilising glucose; manage stress actively
- Consider berberine: one of the most effective natural insulin sensitisers — see our natural Ozempic alternatives guide
- Lose visceral fat: reducing abdominal fat is both a treatment and a consequence of improving insulin sensitivity — a virtuous cycle once established
The Bottom Line
Understanding and addressing insulin resistance requires a comprehensive, evidence-based approach that combines dietary optimisation, targeted supplementation, lifestyle changes, and appropriate medical care. The strategies outlined here represent the current best evidence — always individualise your approach and work with healthcare professionals for personalised guidance.
