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Taurine may improve blood pressure in prehypertension

People with elevated—but not yet high—blood pressure have readings between 120 and 139 mmHg systolic, or 80 and 89 mmHg diastolic, a condition called prehypertension.

Earlier studies had found taurine successfully reduced high blood pressure in animals. In this study, 51 men and 69 women, average age 57, with prehypertension took 1,600 mg of taurine per day, or a placebo. After 12 weeks, average systolic blood pressure had declined by 7.2 mmHg for those taking taurine compared to 2.6 mmHg for placebo.

Because some people get nervous in a doctor’s office, driving up blood pressure readings, doctors also measured ambulatory blood pressure, meaning taking measurements at regular intervals outside the doctor’s office. Average ambulatory systolic blood pressure declined by 3.8 mmHg for taurine compared to 0.3 mmHg for placebo.

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