Does Fish Oil Lower Blood Pressure ?
نویسندگان
چکیده
Background. In a meta-analysis of 31 placebo-controlled trials on 1356 subjects, we examined the effect of w-3 fatty acids in fish oil on blood pressure by grouping studies that were similar in fish oil dose, length of treatment, health of the subjects, or study design. Methods and Results. The mean reduction in blood pressure caused by fish oil for the 31 studies was -3.0/-1.5 mm Hg (95% confidence intervals: systolic blood pressure: -4.5,-1.5; diastolic blood pressure: -2.2,-0.8). There was a statistically significant dose-response effect when studies were grouped by w-3 fatty acid dose: -13/-0.7 mm Hg at doses <3 g/d, -2.9/-1.6 mm Hg at 3.3 to 7 g/d, and -8.1/-5.8
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