A diet to help Polycystic Ovary Syndrome which is much more prevalent in overweight or obese women found that a low glycemic index diet was more successful than a conventionally healthy low fat, moderate fibre diet with similar amounts of nutrients. It is quite common now for GPs to prescribe metformin which helps to regulate sugar levels. At the end of the year long study the women on the low G-I diet showed improved menstrual cycles and greater insulin sensitivity. A similar improvement may be obtained by following a low G-I diet and taking chromium with each meal.
This would also be helped by taking magnesium twice a day. Two herbs that help this problem are Saw Palmetto and Agnus Castus, both need to be taken twice daily for at least 6 months. This programme has helped a number of women conceive.