Women who eat a lot of fast food may take longer to become pregnant and be more likely to experience infertility than their counterparts who rarely if ever eat these types of meals, a recent study suggests.Compared to women who generally avoided fast food, women who indulged four or more times a week before they conceived took almost a month longer to become pregnant, the study of 5,598 first-time mothers in Australia, New Zealand and the UK found.Overall, 2,204 women, or 39 percent, conceived within one month of when they began having sex with their partner without contraception and 468, or 8 percent, experienced infertility and failed to conceive after 12 months of trying.While women who rarely or never ate fast food had an 8 percent risk of infertility, the risk was 16 percent among women who ate fast food at least four times weekly.“Fast foods contain high amounts of saturated fat, sodium, and sometimes sugar,” said lead study author Jessica Grieger of the Robinson Research Institute and the University of Adelaide in Australia.“Although these dietary components and their relationship to fertility has not been specifically studied in human pregnancies, higher amounts of saturated fatty acids were identified in oocytes (an egg cell in the ovary) of women undergoing assisted reproduction and studies in mice have demonstrated that a high-fat diet had a toxic effect on the ovaries” Grieger said by email.