Nutrition assessment of new iodized salt in residents of Shenyang City

[Objective]To investigate the effect of new concentration of iodized salt on iodine nutrition of residents in Shenyang City,and provide the basis for government to formulate the measures for iodine deficiency disease prevention and treatment.[Methods]Shenhe District,Heping District,Liaozhong County,Xinmin City were selected for investigations of children urinary iodine and iodine content of salt at home,pregnant urinary iodine and iodine content of salt at home,average daily salt intake and water iodine content at home. Investigation on iodine content in salt production,sales levels was also conducted.[Results]The urinary iodine content was( 209. 5 ± 129. 4)μg/L among children. Single factor analysis of variance showed there was no significant difference between urinary iodine of urban and rural children. The urinary iodine content was( 136. 0 ± 183. 2)μg/L among children. Single factor analysis of variance showed there was no significant difference between urinary iodine of urban and rural pregnant women. The average daily salt intake was 7. 18 g. The median water iodine content was 8. 69 μg / L.[Conclusion]The iodine nutrition level can still meet the national standards of elimination of iodine deficiency disorders after the implementation of new iodized salt which has not affected the iodine nutrition level of residents.