To combat iodine deficiency disorders, China's salt iodization program launched in 1995, to nearly 20 years now, it should be said with remarkable results. But now about excessive iodine intake, salt iodization stop the voice continued, the relationship between thyroid disease and iodized salt has become a public topic of great concern. Recently, the State Key Laboratory of Food Safety Risk Assessment Center released a report that the risk of iodine deficiency still exists, must adhere to salt iodization policy.
In 2005, the World Health Organization based on the results of the monitoring of children's urine iodine median, described China as "more than an appropriate amount." Since then coastal areas of the NPC and the media attention, some coastal cities have informally allow the sale of non-iodized salt, and called for release of non-iodized salt sales.
State Key Laboratory of food safety risk assessment center method using Total Diet Study conducted studies of dietary iodine intake of Chinese residents as well as coastal residents. Research report that, in our country, iodized salt is the main carrier of iodine, for example, 63.5 percent of Shanghai residents actual dietary intake of iodine from iodized salt. Because of nutritional supplements in general are not listed in iodine, if salt is not iodized, the dietary iodine intake of iodized salt will return to the past, and make our country more than a decade of efforts to prevent iodine deficiency disorders then swing no deposit.
Chinese high dietary iodine intake in the inland areas, rather than along the coast. Excessive salt consumption is the cause of higher inland provinces of dietary iodine intake. World Health Organization recommended level of salt consumption is 5 g / day, while the 2002 national nutrition survey in salt consumption of 12 g / day. Seafood especially low iodine content in animal seafood, although high iodine content, but low intake of Chinese residents vegetable seafood (such as kelp, seaweed), can not provide enough iodine.
Research report that there is a risk of iodine deficiency disorders, especially women of childbearing age before pregnancy and during pregnancy, must ensure adequate iodine intake. The study found that women of childbearing age dietary iodine intake is relatively low, there are of dietary iodine intake is about 10% lower than the average requirement, 30% below the recommended daily intake of iodine nutrition status affect fetal existence risks of.
The study found that 10 years of salt consumption decreased by 31%, which may be related to nutrition education and advocacy related to chronic disease prevention and control, for example, in urban and rural areas dropped to 8.4 and 7.7 grams per day, respectively. The report said, although at a reduced salt intake is a positive development, but it also will reduce the amount of dietary iodine intake, particularly in salt iodization levels decline, so reliable and representative monitoring becomes more important.
(Finishing answer from the National Food Quality Supervision and Inspection Center)
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