Monitoring salt and iodine intakes in Dutch adults between 2006 and 2010 using 24 h urinary sodium and iodine excretions

作者：Hendriksen Marieke A H^*; van Raaij Joop M A; Geleijnse Johanna M; Wilson van den Hooven Caroline; Ocke Marga C; van der A Daphne L

来源：Public Health Nutrition, 2014, 17(7): 1431-1438.

DOI：10.1017/S1368980013001481

• Salt intake
• Iodine intake
• 24 h Urine
• Trends

Objective: To monitor the effectiveness of salt-reduction initiatives in processed foods and changes in Dutch iodine policy on Na and iodine intakes in Dutch adults between 2006 and 2010. %26lt;br%26gt;Design: Two cross-sectional studies among adults, conducted in 2006 and 2010, using identical protocols. Participants collected single 24 h urine samples and completed two short questionnaires on food consumption and urine collection procedures. Daily intakes of salt, iodine, K and Na:K were estimated, based on the analysis of Na, K and iodine excreted in urine. %26lt;br%26gt;Setting: Doetinchem, the Netherlands. %26lt;br%26gt;Subjects: Men and women aged 19 to 70 years were recruited through random sampling of the Doetinchem population and among participants of the Doetinchem Cohort Study (2006: n 317, mean age 48.9 years, 43% men; 2010: n 342, mean age 46.2 years, 45% men). %26lt;br%26gt;Results: While median iodine intake was lower in 2010 (179 mu g/d) compared with 2006 (257 mu g/d; P %26lt; 0.0001), no difference in median salt intake was observed (8.7 g/d in 2006 v. 8.5 g/d in 2010, P = 0.70). In 2006, median K intake was 2.6g/d v. 2.8 g/d in 2010 (P %26lt; 0.01). In this 4-year period, median Na:K improved from 2.4 in 2006 to 2.2 in 2010 (P %26lt; 0.001). %26lt;br%26gt;Conclusions: Despite initiatives to lower salt in processed foods, dietary salt intake in this population remains well above the recommended intake of 6 g/d. Iodine intake is still adequate, although a decline was observed between 2006 and 2010. This reduction is probably due to changes in iodine policy.

• 出版日期2014-7