PMID: 24352061Mar 1, 1993Paper

Urinary sodium and potassium in a sample of healthy adults in Sydney, Australia

Asia Pacific Journal of Clinical Nutrition
L Notowidjojo, A S Truswell

Abstract

Australia has had an official guideline for the last ten years, that people should aim to consume less than 100 mmol sodium per day (equivalent to 6.0 g NaCl). The only practical way of estimating sodium intake is from the 24-h urinary sodium excretion. Between 1970 and 1980 average sodium excretions in different Australian surveys ranged from 130 to 200 mmol/day (middle number 165 mmol/d). These surveys involved small numbers of subjects (n = 11 to 259) . To see how Australians are responding to the guidelines and taking advantage of a range of reduced salt food products now in the supermarkets, we measured urinary sodium and potassium in 117 healthy adult subjects, mostly in the university community. In group N (nutrition personnel) sodium excretion averaged 128 mmol/d in females and 137 mmol/d in males. In group W (eating a western, traditional Australian diet, no special knowledge of nutrition) urinary sodiums averaged 133 mmol/d (female) and 159 mmol/d (male). In group A (eating an Asian diet) sodiums averaged 140 mmol/d (female) and 195 mmol/d (male). Potassium excretions were 73, 81, 72, 76, 53, and 65 mmol/day respectively in the six subgroups. We conclude that these results possibly reflect a small downward trend in Au...Continue Reading

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