A Fruit that Fights PMS

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As many women know, premenstrual syndrome, better known as PMS, is difficult to treat. But some relief may be in sight. According to a report in the January 20 issue of the British Medical Journal, the fruit of the chaste tree, Vitex agnus castus, proved effective in easing the sometimes-debilitating symptoms of PMS.

Researchers at the Institute for Health Care and Science in H¿ttenberg, Germany, studied 170 women diagnosed with the syndrome. Over the course of three menstrual cycles, 86 of the participants received agnus castus extract; the other 84 received placebos. The team assessed six symptoms¿irritability, anger, mood alteration, headache, bloating and breast fullness¿at the start of the first cycle and then at the end of the third cycle.

Those women who had taken the agnus castus extract, they found, experienced significant improvement in all the symptoms except bloating. Indeed, more than half the women had at least a 50 percent improvement in their symptoms, and side effects were few and mild. "Dry extract of agnus castus fruit," the researchers conclude, "is an effective and well-tolerated treatment for the relief of symptoms of the premenstrual syndrome."

Kate Wong is an award-winning science writer and senior editor for features at Scientific American, where she has focused on evolution, ecology, anthropology, archaeology, paleontology and animal behavior. She is fascinated by human origins, which she has covered for nearly 30 years. Recently she has become obsessed with birds. Her reporting has taken her to caves in France and Croatia that Neandertals once called home to the shores of Kenya’s Lake Turkana in search of the oldest stone tools in the world, as well as to Madagascar on an expedition to unearth ancient mammals and dinosaurs, the icy waters of Antarctica, where humpback whales feast on krill, and a “Big Day” race around the state of Connecticut to find as many bird species as possible in 24 hours. Wong is co-author, with Donald Johanson, of Lucy’s Legacy: The Quest for Human Origins. She holds a bachelor of science degree in biological anthropology and zoology from the University of Michigan. Follow her on Bluesky @katewong.bsky.social

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