Diet May Help Ease PMS Symptoms, Study Finds

Premenstrual syndrome, which leaves many women retaining water and feeling moody, may be managed by a diet that contains the proper balance between iron and potassium, according to a new study published in the American Journal of Epidemiology.  More from The New York Times:

Using data from a larger analysis of women’s health, researchers studied 1,057 women with PMS and 1,968 control subjects. They used questionnaires to establish their nutrient intake, both food and supplements, and established cases of PMS by clinical diagnosis.

After controlling for various health and dietary factors, they found that women in the highest 20 percent for iron intake were about 40 percent less likely to suffer PMS as those in the lowest 20 percent.

The study, published online in The American Journal of Epidemiology, found the opposite effect with potassium. Those in the highest 20 percent of intake had a 46 percent increased risk for PMS compared with those in the lowest 20 percent. There was no risk associated with intake of magnesium, zinc, manganese, copper or sodium.

The senior author, Elizabeth R. Bertone-Johnson, an associate professor of epidemiology at the University of Massachusetts, cautioned women against taking too much iron, or consuming too little potassium, both of which can be harmful. “Eating a balanced diet with a variety of foods,” she said, “is a good way to ensure that women are consuming important vitamins and minerals.”

The Institute of Medicine recommends that women ages 19-50 get 18 milligrams of iron each day, and that all adults consume 4,700 milligrams of potassium daily.  Iron-rich foods include beef, egg yolks, and dark leafy greens; potassium is found in bananas, baked potatoes (with skin), and white beans.

Image: Dark leafy greens, via Shutterstock

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