Association Between Protein Intake and Blood Pressure

ABSTRACT Background Findings from epidemiological studies suggest an inverse relationship between individuals’ protein intake and their blood pressure. Methods Cross-sectional epidemiological study of 4680 persons, aged 40 to 59 years, from 4 countries. Systolic and diastolic blood pressure was measured 8 times at 4 visits. Dietary intake based on 24-hour dietary recalls was recorded 4 times. Information on dietary supplements was noted. Two 24-hour urine samples were obtained per person. Results There was a significant inverse relationship between vegetable protein intake and blood pressure. After adjusting for confounders, blood pressure differences associated with higher vegetable protein intake of 2.8% kilocalories were –2.14 mm Hg systolic and –1.35 mm Hg diastolic (PConclusions Vegetable protein intake was inversely related to blood pressure. This finding is consistent with recommendations that a diet high in vegetable products be part of healthy lifestyle for prevention of high blood pressure and related diseases. Archives of Internal Medicine 2006;166:79-87

 

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