Researchers studied 90, 137 women, aged from 50 to 79 on average for 11 years. They looked at how much potassium the women consumed, as well as if they had strokes, including ischemic strokes(缺血性中风), or died during the study period. Women in the study were stroke-free at the start and their average dietary potassium intake was 2, 611 mg/day. Results of this study are based on potassium from food, not supplements.
The researchers found: Women who ate the most potassium were 12 percent less likely to suffer stroke in general and 16 percent less likely to suffer an ischemic stroke than women who ate the least. Women who ate the most potassium were 10 percent less likely to die than those who ate the least. Among women who did not have high blood pressure, those who ate the most potassium had a 27 percent lower ischemic stroke risk and 21 percent reduced risk for all stroke types, compared to women who ate the least potassium in their daily diets. Among women with high blood pressure, those who ate the most potassium had a lower risk of death, but potassium intake did not lower their stroke risk.
“Our findings suggest that women need to eat more potassium-rich foods. You won’t find high potassium in junk food. Some foods rich in potassium include white and sweet potatoes, bananas and white beans. ”
The U. S. Department of Agriculture recommends that women eat at least 4, 700 mg of potassium daily. “Only 2. 8 percent of women in our study met or went beyond this level. The World Health Organization’s daily potassium recommendation for women is lower, at 3, 510 mg or more. Still, only 16. 6 percent of women we studied met or went beyond that, ”said Smoller.
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