PCOS involves ovarian hormones; in many women, insulin also contributes.
How insulin connects
High insulin can prompt ovaries to make androgens, disrupting ovulation and causing acne or excess hair. It also lowers SHBG, which limits androgen activity.
Lean women can also have insulin resistance.
What helps
Support glucose with protein at meals, vegetables first, fewer refined carbs and sugary drinks, strength training, regular sleep and stress management.
For PCOS with overweight, guidelines recommend 5 to 10% weight loss; it may restore cycles.
Tests worth discussing
Your gynaecologist may recommend fasting insulin and glucose, HbA1c, lipids, thyroid, vitamin D or hormone tests.
Education, not personal medical advice. Consult a qualified clinician about diagnosis, treatment and your results.