Introduction: polycystic ovarian syndrome (PCOS) is an endocrine-gynecological disorder that affects and worsens the quality of life of women by altering their physiology and psychology in reproductive age. People with PCOS are more likely to develop insulin resistance, obesity, metabolic syndrome, systemic inflammation, or a combination of these chronic conditions. All of these conditions or diseases increase the risk of diabetes, cardiovascular disease, and other diseases. There are several methods to reduce the chances of suffering from these diseases, among which are proper dietary management, which is why this review has been developed, whose purpose is to gather the information available to date. Objective: describe actual and available dietary treatments for polycystic ovary syndrome (PCOS). Methodology: a total of 67 articles were analyzed in this review, including review and original articles, as well as clinical cases, of which 39 bibliographies were used because the other articles were not relevant for this study. The sources of information were PubMed, Scopus and Web of Science; the MeSH keywords Polycystic Ovary Syndrome Diet Treatment and DeCS Síndrome de ovario poliquístico Tratamiento Dieta were used. Conclusions: currently there are diets and supplements that have been rigorously investigated (through clinical trials) within which certain benefits have been observed with respect to body composition and biomarkers. Within these diets and supplements we find the following diets: ketogenic, mediterranean, low glycemic index, pulse-based, DASH and restricted feeding. At the moment, the number of studies, their magnitude and duration remain insufficient to guarantee reliable recommendations for patients, which is why it is essential that larger studies be carried out to guarantee adequate therapy for the benefit of patients.