The researchers found that women who had ever been fed soy formula as babies were
40 percent more likely to have used hormonal contraception at some point to alleviate menstrual pain compared to women who had not been fed soy formula as babies; between the ages of 18 and 22 years they were 50 percent more likely to have experienced moderate or severe menstrual discomfort or pain with most of their periods.
Dr Kristen Upson said: “Menstrual pain is the most common menstrual complaint and can substantially affect the quality of women’s lives. Exposure to oestrogens during infant development, such as the phytoestrogens in soy formula, may affect reproductive health. — ANI