Insulin resistance is central to most cases of PCOS. A diet that reduces blood sugar spikes, lower in refined carbohydrates and higher in fibre and protein, directly addresses this mechanism. Losing even 5 percent of body weight in women who are overweight reduces androgen levels and improves cycle regularity in most cases.
Resistance training is particularly effective for PCOS because building muscle improves insulin sensitivity. Stress management matters because high cortisol worsens androgen excess. A consistent approach to diet, exercise, and sleep is more effective than any single intervention.