Threshold Effects of Dietary Calcium on Blood Pressure
- UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
- H. William Gruchow, Professor (Creator)
- Institution
- The University of North Carolina at Greensboro (UNCG )
- Web Site: http://library.uncg.edu/
Abstract: The relationships of calcium and dietary sodium, potassium and alcohol to blood
pressures were studied at three different levels of dietary calcium intake by adults in the
Health and Nutrition Examination Survey (HANES) I sample. At low calcium intakes
(<400 mg/day), after adjustment for age and body mass index, the strongest dietary
correlates of blood pressure were the ratio of sodium to potassium (Na:K), and alcohol
(P < 0.01). At higher calcium intakes alcohol, but not Na:K, was significantly related to blood pressures. Neither sodium nor potassium was separately related to blood
pressure when the Na:K ratio was included in the regression model. The threshold
effect of calcium was observed in all race-gender groups. These results indicate: (i)
the Na:K is a more important correlate of blood pressure than either nutrient alone; and
(2) a low calcium intake is necessary for the Na:K ratio to maximally affect blood
pressure.
Threshold Effects of Dietary Calcium on Blood Pressure
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Additional Information
- Publication
- Journal of Hypertension 1986,4 (suppl 5):8355-8357
- Language: English
- Date: 1986
- Keywords
- alcohol use, calcium, hypertension, potassium, sodium