Why Your Blood Sugar Looks Normal But You Still Have PCOS Symptoms
You’ve had labs done. Glucose is normal. A1c is fine. So why do you still have irregular cycles, jaw breakouts, energy crashes, and weight that won’t move?
The answer, for many women with PCOS, is insulin resistance and it’s being missed because providers are checking the wrong markers.
Insulin Resistance Can Be Present Long Before Blood Sugar Changes
Your body is good at keeping blood sugar in range. In early insulin resistance, the pancreas simply produces more insulin to compensate. Blood sugar stays normal. But that elevated insulin is already doing damage in the background; driving androgen production, promoting fat storage, disrupting your cycle.
By the time glucose starts to rise, insulin resistance has often been present for years.
This is why up to 70-80% of women with PCOS have insulin resistance, including lean women with “normal” labs.
The Labs That Actually Tell the Story
If these haven’t been ordered, ask about them:
Fasting insulin- not just fasting glucose
SHBG- low levels signal high androgen burden
Free testosterone and DHEA-S
Triglycerides and HDL (early metabolic red flags)
The pattern I see often: fasting insulin elevated, SHBG low, androgens at the top of range. None of it trips a conventional alarm. Together, it tells a clear story.
What Actually Moves the Needle
Addressing insulin resistance in PCOS isn’t about one intervention, it’s about changing the metabolic environment driving the hormonal disruption:
Protein-first meals to blunt insulin spikes (aim for 30g at breakfast)
Resistance training- one of the most effective insulin sensitizers available
Sleep and stress management- cortisol directly worsens insulin resistance
Targeted supplements or medications when appropriate, layered on top of the above
The right approach depends on your individual labs, symptoms, and phenotype. That’s what a thorough functional medicine workup is designed to sort out.
If you’ve been told your labs are normal but you’re still not feeling like yourself, it may not be that nothing is wrong, it may be that no one has looked at the right things yet.
Book a complimentary 15-minute discovery call at Rooted Functional Medicine to talk through your history and see if a root-cause approach makes sense for you.