HbA1c test for women — blood sugar, insulin resistance and the cycle.
HbA1c shows your average blood sugar over the last 90 days — but on its own it misses early insulin resistance. Pair it with fasting insulin (and HOMA-IR) and you have the women's metabolic picture.
Her Form runs HbA1c and fasting insulin on every metabolic-aware panel, or as a stand-alone draw if blood sugar is what you came for. Nurse home draw, accredited lab, written specialist read against your cycle, weight and energy story.
Why HbA1c + insulin matters for women
Insulin resistance shows up in fasting insulin years before HbA1c climbs — testing only HbA1c misses the early window where it's most reversible.
PCOS is, at its core, an insulin-driven condition for ~70% of women — HbA1c + insulin is the most actionable starting point.
Perimenopause reduces insulin sensitivity even in lean women — belly weight, night sweats and brain fog all worsen as fasting insulin creeps up.
Optimal fasting insulin for women sits <8 µIU/mL; HOMA-IR <1.5. Most labs only flag once you're already pre-diabetic.
When to test
Fast 10–12 hours — water only — so fasting insulin and glucose are reliable.
Any cycle day; if you have PCOS or are charting weight gain, retest at 12 weeks after any dietary change.
The markers that clarify the picture
Hormonal Harmony Package
Reclaim your energy, mood, and metabolism.
- · Full hormone + adrenal panel
- · Cortisol & DHEA
- · Metabolic markers
Why do you test HbA1c and fasting insulin together?+
HbA1c shows the last 90 days of glucose; fasting insulin shows how hard your pancreas is working to keep it there. Insulin rises years before HbA1c does — testing both catches insulin resistance early.
What's optimal vs the lab range?+
Labs flag HbA1c ≥5.7% as pre-diabetic. We target <5.4% for women optimising fertility, weight or perimenopause. Fasting insulin should sit <8 µIU/mL, ideally 3–6.
Could PCOS show up here?+
Yes — about 70% of women with PCOS have insulin resistance. Combined with elevated LH:FSH and testosterone, the metabolic markers are often where the diagnosis becomes clear.
Do I need to fast?+
Yes — 10–12 hours, water only. Coffee and tea (no milk/sugar) are fine. Take morning medications with water unless your prescriber says otherwise.
Is a GP referral needed?+
No — Her Form is direct-to-consumer. We send a certified nurse to your home, ship samples to our accredited partner lab, and return results with a written review by our health specialists. Robyn is available for an optional 1:1 consult.
How long until I have my results?+
7–14 working days from draw, including written specialist review. Anything urgent is flagged the same day it lands.
References
- Endocrine Society — Female hormone health — Sex hormone assessment and interpretation in women
- Jean Hailes for Women's Health — Comprehensive women's hormone health guidance
- RANZCOG — Women's health guidelines — ANZ clinical standards for reproductive-age women
- NICE — Women's health guidelines — Evidence-based hormone and reproductive health guidance
The references above are provided for educational purposes only. Her Form does not endorse any specific organisation, treatment, or guideline. Information on this page does not constitute medical advice and is not a substitute for consultation with a qualified healthcare professional.