A growing body of research suggests that the gut microbiome may play an important role in Polycystic Ovary Syndrome (PCOS), a common endocrine disorder affecting women of reproductive age. A recent review published in ACS Nutrition Science highlights the potential of postbiotics as a complementary approach for managing the condition.
PCOS is characterized by hormonal imbalance, particularly elevated androgen levels, along with ovulatory dysfunction and polycystic ovarian morphology. Many women with PCOS also experience metabolic issues such as Insulin Resistance, weight gain, acne, infertility, and excessive hair growth. Researchers believe that both genetic and environmental factors contribute to the development of the disorder.
Recent studies have linked PCOS with disturbances in the gut microbiome. Women with PCOS often show signs of gut dysbiosis, an imbalance between beneficial and harmful gut bacteria. Beneficial microbes such as Bifidobacterium and Lactobacillus may decline, while potentially harmful bacteria like Escherichia coli and Staphylococcus aureus may increase. This imbalance can promote inflammation, disrupt metabolism, and worsen insulin resistance.
Postbiotics—bioactive compounds produced by beneficial bacteria—are emerging as a potential therapeutic tool. These compounds include Short Chain Fatty Acids (SCFAs) such as butyrate and acetate, which help regulate inflammation, maintain the intestinal barrier, and improve metabolic health. Reduced SCFA production due to gut dysbiosis may increase intestinal permeability and allow bacterial toxins to enter the bloodstream, triggering inflammation.
Preliminary evidence suggests that postbiotics may help improve insulin sensitivity, regulate glucose metabolism, reduce inflammation, and lower androgen levels. These effects could potentially reduce the risk of complications such as Type 2 Diabetes and cardiovascular disease in women with PCOS.
REFERENCE: Pathak, V. A., Kshirsagar, S. J., Deokar, G. S., et al. (2026). Therapeutic Application of Postbiotics in the Management of Polycystic Ovarian Syndrome. ACS Nutrition Science. DOI: https://doi.org/10.1021/acsnutrsci.5c00042. https://pubs.acs.org/doi/10.1021/acsnutrsci.5c00042
Study Finds Postbiotics Could Aid PCOS Treatment via Microbiome Restoration
