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PURPOSE OF REVIEW: The polycystic ovary syndrome (PCOS) is an endocrine dysfunction associated with a myriad of metabolic disorders and high rate of infertility. In order to aid its management, several lifestyle/dietary interventions have been evaluated. Very low-calorie ketogenic diet (VLCKD) is rapidly showing promising benefits not only in obesity but also in the treatment of other metabolic diseases. The main objective of this review is to assess the scientific evidence in support of this dietary pattern as an effective measure for treating PCOS and the metabolic disorders associated with it. RECENT FINDINGS: Preliminary data suggested significant improvements in body weight and composition, metabolic profile (glucose, serum insulin, triglycerides, total and low-density lipoprotein cholesterol), and insulin resistance following VLCKD. However, the evidence is still scarce and needs to be more substantiated. Weight reduction in women with PCOS has been shown to improve metabolic derangements and body composition, but there is no consensus on the ideal dietary pattern or macronutrient composition. There is some evidence supporting the possible role of the Mediterranean diet in improving infertility (along with other well-known metabolic benefits) in women with PCOS. Of note, VLCKD might be considered a potential intervention for the short-term treatment of PCOS, but it must be prescribed and carefully guided by professionals.
Barrea et al. (2023) studied this question.