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Emerging issues include discrepancies between urinary iodine status in pregnant women compared to school - aged children in some populations , the problem of re - emerging iodine deficiency in parts of the developed world , the importance of food industry use of iodized salt , regions of iodine excess , and the potential effects of initiatives to lower population sodium consumption on iodine intake .
 Chemical: iodine; Chemical: iodine; Chemical: iodine; Chemical: sodium; Chemical: iodine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: iodine; Chemical: iodine; Chemical: iodine; Chemical: sodium; Chemical: iodine