Thin women risk infertility
- By: Kay Brennan
Women who keep their body fat to a minimum, so they can be fashionably thin, could be putting their fertility at risk, according to a US expert. In Female Fertility and the Body Fat Connection, a new book, Professor Rose Frisch looks at fertility, body fat, and reproductive health; she suggests women who are too lean are risking infertility.
Professor Frisch, associate professor of population sciences emeritus at the Harvard Medical School of Public Health, Boston, has devised a critical fatness theory after over a decade of work in the area. The theory connects body mass index with fertility: if the index drops to 18 or 19 then ovulation stops. This can go unnoticed as a woman's periods may continue with no change; at indices of less than 18, however, periods will often stop altogether.
Frisch highlights the danger of being borderline underweight, and says that a loss of only