The present invention in one aspect concerns a composition for the prevention and/or treatment of polycystic ovary syndrome and its related symptoms, comprising a combination of Banaba extract ( Lagerstroemia speciosa L. ), inositol in one of its chiral or salt forms, lpomoea Batatas and a physiologically acceptable carrier. The composition can further contain lignans and be a herbal product, a food supplement, a dietetic and/or a nutritional product.