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Chloride Levels In Blood Seem To Play A Role In Hypertension

September 8, 2013: 12:00 AM EST
Scientists are finding that the other, often overlooked, element in table salt – namely, chloride – plays an important role in blood pressure. A U.K. study shows that low chloride levels in the blood signals an increased mortality and cardiovascular disease risk in people with hypertension. That is the opposite of what is known about sodium levels. The study analyzed data from 13,000 patients with high blood pressure, finding that people with the lowest levels of chloride in their blood were 20 percent more likely to die than people with normal levels. The researchers said it is too early to draw “any conclusions about relating this finding to salt intake and diet”.
L. McCallum et al., "Serum Chloride Is an Independent Predictor of Mortality in Hypertensive Patients", Hypertension , September 08, 2013, © American Heart Association
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