Recent research published in Nature Medicine has indicated that intermittent fasting (IF) may positively influence hormonal levels in individuals with polycystic ovary syndrome (PCOS), potentially aiding in weight loss. PCOS is an endocrinological disorder affecting 10-13% of women of reproductive age globally, characterized by difficulties in weight management.
The study involved 76 participants who were divided into three groups over six months: one group followed a time-restricted eating (TRE) regimen, another adhered to a calorie restriction plan, and a control group had no dietary restrictions. Notably, both the TRE and calorie-restriction groups achieved significant weight loss, with the TRE group also exhibiting changes in testosterone and A1C levels—markers associated with diabetes risk.
Krista Varady, a researcher from the University of Illinois Chicago, highlighted that weight loss of around 5% can help lower testosterone levels in women with PCOS, which may alleviate various symptoms linked to the condition. While hormonal birth control is a common treatment for PCOS, it can lead to side effects such as mood changes and increased stroke risk, prompting the search for alternative methods.
Intermittent fasting focuses on the timing of food intake rather than caloric content, which some individuals may find easier to adhere to than traditional calorie counting. Registered dietitian Kristin Kirkpatrick noted that establishing a balanced dietary foundation is essential before implementing fasting schedules. Varady recommends a 6 to 8-hour eating window, ideally concluding at least one hour before bedtime.
As with any dietary approach, maintaining consistency in eating patterns, along with potential dietary improvements—such as increasing non-starchy vegetables and adequate protein intake—can support overall health and weight management for those with PCOS.