Insulin Resistance in PCOS, Explained Simply

"My HOMA-IR is 3.1 and nobody explained it." Insulin resistance is one of the most important — and least explained — parts of PCOS. Here it is in plain language.

What insulin resistance is

Insulin is the hormone that helps move sugar from your blood into your cells for energy. In insulin resistance, the cells respond less efficiently, so your body compensates by producing more insulin. That higher circulating insulin is thought to contribute to the hormonal imbalances of PCOS, including excess androgens — which is why it sits at the centre of the condition for many women.^[1] PCOS's 2026 rename to polyendocrine metabolic ovarian syndrome reflects exactly this metabolic dimension.

You don't have to be overweight

A common myth is that insulin resistance only affects heavier women. In fact, a component of insulin resistance in PCOS is independent of body weight, and lean women with PCOS can be insulin resistant too.^[2] That's why guidelines recommend assessing metabolic health in all women with PCOS, regardless of size.^[3]

What HOMA-IR means

HOMA-IR (Homeostatic Model Assessment of Insulin Resistance) is a number calculated from your fasting glucose and fasting insulin. It's a rough screening marker — a higher value suggests more insulin resistance — but cut-offs vary between labs and populations, and it isn't a standalone diagnosis.^[1] Treat it as one clue your doctor reads alongside the rest of your picture.

Why it matters

Insulin resistance links PCOS to longer-term metabolic risks such as type 2 diabetes, which is why addressing it is part of caring for the whole condition, not just the cycle.^[4] The good news: lifestyle approaches that improve insulin sensitivity — like lower-glycaemic-index eating and activity — are well supported, and your doctor can discuss medical options where appropriate. Our Indian PCOS diet guide covers the food side without giving up roti or rice.