By Dr. Liji Thomas, MD Reviewed by Lauren Hardaker Mar 10 2026 A growing body of research suggests that the gut microbiome may influence the hormonal and metabolic disruptions seen in PCOS. Scientists now propose that postbiotics, bioactive compounds produced by microbes, could one day complement existing treatments by restoring microbial balance and improving metabolic health.  Study: Therapeutic Application of Postbiotics in the Management of Polycystic Ovarian Syndrome . Image credit: Elif