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Eur J Epidemiol. 1995 Jun;11(3):275-81.

The influence of dairy products on plasma uric acid in women.

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  • 1Unité de recherche en Epidémiologie, Hôtel-Dieu de Montréal, Québec, Canada.

Abstract

Elevated levels of plasma uric acid have been linked to increased risk of cardiovascular diseases and their complications. As dairy proteins have been found to decrease plasma uric acid without increasing glomerular filtration rate, a sample of postmenopausal women living in Montreal was studied to investigate the nature of this relationship. Participants (158 Roman Catholic nuns) were randomly assigned to one of two test diets for a period of four weeks: the dairy foods group (n = 81) consumed approximately 30 grams of dairy protein daily and the dairy-free diet group (n = 77) ate no dairy foods at all. Subjects completed two one-day food records, a core questionnaire and a dairy foods diet history; blood specimens were obtained, and blood pressure, height and weight were measured. Average nutrient intakes differed as a consequence of the test diets, with significantly greater intakes of protein, fat, saturated fat, monounsaturated fat, potassium and calcium (p < 0.01) in the dairy group after the study period, and lower dietary levels of protein, cholesterol, calcium and retinol (p < 0.01) in the dairy-free group. Plasma uric acid was unchanged after the dietary intervention in the dairy group, but increased by 7.8 mumol/l (p = 0.03) in subjects on the dairy-free diet; however, diastolic blood pressure decreased in response to calcium (beta = -22.9, SE = 10.0, p = 0.02) among those whose diet included dairy foods.(ABSTRACT TRUNCATED AT 250 WORDS)

PMID:
7493659
[PubMed - indexed for MEDLINE]
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