12/08/2026
Tired after meals. Craving sugar. Struggling to lose weight.
They’re common symptoms with plenty of possible causes - but one that can be overlooked is reduced insulin sensitivity.
And it can start changing long before blood glucose becomes obviously high.
So, what actually is insulin resistance?
Insulin helps glucose move from your bloodstream into your cells to be used for energy.
When those cells become less responsive, your body compensates by producing more insulin to get the same job done.
For a while, that compensation can work remarkably well.
This is where it gets missed.
Your fasting glucose and HbA1c can still look reassuring because your body is producing more insulin to keep glucose under control.
So the question isn’t always just: “Is my glucose high?”
It can also be: “How hard is my body working to keep it there?”
Insulin resistance doesn’t always look the same.
For some people it’s persistent fatigue or brain fog. For others, it might be sugar cravings, increased abdominal fat, difficulty losing weight or irregular cycles.
None of these symptoms confirm insulin resistance on their own - but recurring patterns can be worth investigating.
Glucose is only one part of the metabolic picture.
Fasting insulin, HbA1c, triglycerides, extended cholesterol, blood pressure, liver markers and waist circumference can all add context.
When appropriate, fasting glucose and insulin can also be used to calculate HOMA-IR.
One result rarely tells the whole story.
You don’t have to wait until glucose becomes high to pay attention.
Metabolic changes can develop gradually, which is why earlier insight can be useful.
Understanding the pattern gives you the opportunity to address contributing factors before they progress - rather than waiting for one marker to cross a reference range.