10.01.08
Indication: Blood pressure
Source: Hypertension, August 2008; 52(2):408-14. Epub 2008 July 7.
Research: Findings from observational and interventional studies on the relationship of dietary linoleic acid—the main dietary polyunsaturated fatty acid—with blood pressure have been inconsistent. So researchers developed the International Study of Macro-Micronutrients and Blood Pressure, a cross-sectional epidemiological study of 4680 men and women aged 40 to 59 years from 17 population samples in China, Japan, the U.K., and the U.S. The goal of the study was to report associations between linoleic acid intake and blood pressure. Nutrient intake data were based on four in-depth 24-hour dietary recalls per person and two timed 24-hour urine collections per person. Systolic and diastolic blood pressures were measured eight times at four visits.
Results: With several models controlling for potential confounders, researchers found an inverse relationship between linoleic acid intake (percent kilocalories) and systolic and diastolic blood pressure for all of the participants. When analyzed for 2238 “nonintervened” individuals—not on a special diet, not consuming nutritional supplements, no diagnosed cardiovascular disease or diabetes and not taking medication for high blood pressure, cardiovascular disease or diabetes—the relationship was stronger. According to these results, researchers believe dietary linoleic acid intake may contribute to prevention and control of adverse blood pressure levels in general populations.
Source: Hypertension, August 2008; 52(2):408-14. Epub 2008 July 7.
Research: Findings from observational and interventional studies on the relationship of dietary linoleic acid—the main dietary polyunsaturated fatty acid—with blood pressure have been inconsistent. So researchers developed the International Study of Macro-Micronutrients and Blood Pressure, a cross-sectional epidemiological study of 4680 men and women aged 40 to 59 years from 17 population samples in China, Japan, the U.K., and the U.S. The goal of the study was to report associations between linoleic acid intake and blood pressure. Nutrient intake data were based on four in-depth 24-hour dietary recalls per person and two timed 24-hour urine collections per person. Systolic and diastolic blood pressures were measured eight times at four visits.
Results: With several models controlling for potential confounders, researchers found an inverse relationship between linoleic acid intake (percent kilocalories) and systolic and diastolic blood pressure for all of the participants. When analyzed for 2238 “nonintervened” individuals—not on a special diet, not consuming nutritional supplements, no diagnosed cardiovascular disease or diabetes and not taking medication for high blood pressure, cardiovascular disease or diabetes—the relationship was stronger. According to these results, researchers believe dietary linoleic acid intake may contribute to prevention and control of adverse blood pressure levels in general populations.