Cinnamon is shown to reduce insulin resistance (IR) in women with polycystic ovary syndrome (PCOS). Cinnamon has been found to have insulin sensitizing effect and improve menstrual cyclicity in women with PCOS. A study showed that daily use of cinnamon for forty days can lower the blood sugar level in patients with diabetes. Using cinnamon everyday for 8 weeks decreases insulin resistance in women with PCOS.