期刊
NUTRIENTS
卷 7, 期 6, 页码 4054-4067出版社
MDPI
DOI: 10.3390/nu7064054
关键词
sodium; salt; processed food; packaged food; food analysis; New Zealand
资金
- Heart Foundation of New Zealand [1463]
Decreasing population sodium intake has been identified as a best buy for reducing non-communicable disease. The aim of this study was to explore 10-year changes in the sodium content of New Zealand processed foods. Nutrient data for nine key food groups were collected in supermarkets in 2003 (n = 323) and 2013 (n = 885). Mean (SD) and median (min, max) sodium content were calculated by food group, year and label type (private/branded). Paired t-tests explored changes in sodium content for all products available for sale in both years (matched; n = 182). The mean (SD) sodium content of all foods was 436 (263) mg (100 g)(-1) in 2003 and 433 (304) mg (100 g)(-1) in 2013, with no significant difference in matched products over time (mean (SD) difference, -56 (122) mg (100 g)(-1), 12%; p = 0.22). The largest percentage reductions in sodium (for matched products) were observed for Breakfast Cereals (28%; -123 (125) mg (100 g)(-1)), Canned Spaghetti (15%; -76 (111) mg (100 g)(-1)) and Bread (14%; -68 (69) mg (100 g)(-1)). The reduction in sodium was greater for matched private vs. branded foods (-69 vs. -50 mg (100 g)(-1), both p < 0.001). There has been modest progress with sodium reduction in some New Zealand food categories over the past 10 years. A renewed focus across the whole food supply is needed if New Zealand is to meet its global commitment to reducing population sodium intake.
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