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Urinary sodium excretion and dietary sources of sodium intake in Chinese postmenopausal women with prehypertension.


ABSTRACT:

Background

Reducing salt intake in communities is one of the most effective and affordable public health strategies to prevent hypertension, stroke and renal disease. The present study aimed to determine the sodium intake in Hong Kong Chinese postmenopausal women and identify the major food sources contributing to sodium intake and urine excretion.

Methods

This was a cross-sectional study among 655 Chinese postmenopausal women with prehypertension who were screened for a randomized controlled trial. Data collection included 24 h urine collection for the measurement of sodium, potassium and creatinine, 3-day dietary records, anthropometric measures and questionnaire survey on demographic data and dietary habits.

Results

The average salt intake estimated from urinary excretion was 7.8 ± 3.2 g/d with 82.1% women above WHO recommendation of 5 g/day. Food groups as soup (21.6%), rice and noodles (13.5%), baked cereals (12.3%), salted/preserved foods (10.8%), Chinese dim sum (10.2%) and sea foods (10.1%) were the major contributors of non-discretionary salt. Discretionary salt use in cooking made a modest contribution to overall intake. Vegetable and fruit intake, age, sodium intake from salted foods, sea foods and soup were the independent determinants of urinary sodium excretion.

Conclusions

Our data revealed a significant room for reduction of the sodium intake. Efforts to reduce sodium from diets in Hong Kong Chinese postmenopausal women should focus on both processed foods and discretionary salt during cooking. Sodium reduction in soup and increase in fruit intake would be potentially effective strategy for reducing sodium.

SUBMITTER: Liu ZM 

PROVIDER: S-EPMC4119001 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Publications

Urinary sodium excretion and dietary sources of sodium intake in Chinese postmenopausal women with prehypertension.

Liu Zhao-Min ZM   Ho Suzanne C SC   Tang Nelson N   Chan Ruth R   Chen Yu-Ming YM   Woo Jean J  

PloS one 20140801 8


<h4>Background</h4>Reducing salt intake in communities is one of the most effective and affordable public health strategies to prevent hypertension, stroke and renal disease. The present study aimed to determine the sodium intake in Hong Kong Chinese postmenopausal women and identify the major food sources contributing to sodium intake and urine excretion.<h4>Methods</h4>This was a cross-sectional study among 655 Chinese postmenopausal women with prehypertension who were screened for a randomize  ...[more]

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