According to a study from Harvard Medical School, eating certain foods and avoiding others is something manageable that can be done to help improve ovulatory function.
There are more than six million women in the United States who suffer from infertility. For eight years the Harvard study followed 17,544 married nurses without any history of infertility as they tried to become or became pregnant. The research found that by changing five or more aspects of their diet (and exercise) habits, women with irregular or absent ovulation, which is responsible for eighteen to thirty percent of infertility cases, reduced their risk of infertility by eighty percent. (Resource: Fit Pregnancy).