Introduction: Polycystic ovary syndrome is one of the most common health disorders, which can affect female population of all age groups. Its onset usually occurs during the adolescence. The symptoms and signs of the disease relate mostly to the excess secretion of androgenic hormones, caused by insulin resistance. Symptoms of the disease are mainly caused by insulin resistance, which results in excess production of male hormones. In addition to medications, lifestyle changes, such as diet and exercise are the most significant when it comes to controlling and managing of the disorder. Purpose: The purpose of the thesis is to explore the impact of dietary habits on the symptoms of the syndrome and explore which food have a beneficial impact on the disease. Further more we want to discover which food supplements improve this medical condition. We also want to explain the role of physical activity on the symptoms of the syndrome. The overall focus however, is placed on dietary implications. Methods: Descriptive method of research was used including collecting, analysing, and critically reviewing foreign and slovenian literature such as scientific and review articles. Literature search was conducted through the following databases: Medline (Pubmed), CINAHL, DiKul and COBIB.SI. Discusion and conclusion: Polycystic ovary syndrome demands changes in lifestyle. Food with low glycemic index and low glycemic load helps to manage insulin resistance, and in turn helps with the management of the symptoms. Food supplements such as omega-3 unsaturated fatty acids, vitamin D, chromium and inositol also contribute greatly to reduction of symptoms such as excessive hair growth, acne, obesity, high values of cholesterol in blood etc. The most effective way of treatment however, consists of a combination of diet and physical activity, which results in rapid and sustainable long-term results. Polycystic ovary syndrome also has a significant impact on the quality of life of women, therefore the role of a nurse who contributes to the awareness of women about the disease and its treatment, is of utmost importance. In addition, support groups can be a useful manner of treatment for women who seek help and wish to gather current information from professionals and other participants, which can help them significantly to cope with the disease.