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Large Daily Dose Of Vitamin C Reduces Blood Pressure, But Not As Much As Medications

April 18, 2012: 12:00 AM EST
U.S. researchers who analyzed data from 29 published clinical studies find that taking an average of 500 mg of vitamin C every day reduces blood pressure by 3.84 mm of mercury in the short term. That amount of vitamin C – five times the recommended daily dosage and equivalent to six cups of orange juice  – reduces the blood pressure of people diagnosed with hypertension by 5 mm of mercury. By contrast, patients who take blood pressure medication such as ACE inhibitors or diuretics can expect a 10 mm of mercury drop in blood pressure.
S. P. Juraschek et al., "Effects of vitamin C supplementation on blood pressure: a meta-analysis of randomized controlled trials", American Journal of Clinical Nutrition, April 18, 2012, © American Society for Nutrition
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