Fasting glucose, insulin and HOMA-IR decreased significantly (p < 0.01) and twelve IFG PCOS patients (80%) showed normal fasting blood glucose, while in the remaining three IFG patients (20%) the values of fasting glucose improved (decrease of at least 10 mg/dL) but remained higher than 100 mg/dL. Here, INS is linked to polycystic ovary syndrome.