Abstract
Iodized salt has been an important source of dietary iodine, a trace element important for regulating human growth, development, and metabolic functions. This analysis identified iodized table salt sales as a percentage of retail salt sales using Nielsen ScanTrack. We identified 1117 salt products, including 701 salt blends and 416 other salt products, 57 of which were iodized. When weighted by sales volume in ounces or per item, 53% contained iodized salt. These findings may provide a baseline for future monitoring of sales of iodized salt.
Highlights
IntroductionA trace element, plays a key role in regulating human growth, development, and metabolic functions
Adequate intake of iodine, a trace element, plays a key role in regulating human growth, development, and metabolic functions
46.8 a Nielsen ScanTrack data; b The number of salt products can include more than 1 product from the same brand; c Percent of total salt sales weighted by volume of sales; d Salt blends; e Percent of total salt sales excluding salt blends weighted by volume of sales; f Salt in salt and pepper shakers sold as packet were labeled as iodized or non-iodized salt
Summary
A trace element, plays a key role in regulating human growth, development, and metabolic functions. Worldwide in 2011, 1.88 billion people were iodine deficient [1,2]. Iodine deficiency can result in goiter, neurocognitive impairment, Nutrients 2015, 7 hyperthyroidism, and hypothyroidism [3]. Severe iodine deficiency can cause cretinism, congenital anomalies, and increased neonatal and infant mortality [2], with recent evidence from observational studies suggesting mild to moderate deficiency during pregnancy can lead to reduced IQ and educational achievement among offspring [4,5]. Iodizing salt is a global public health strategy for addressing iodine deficiency [9], yet limited data exist on the proportion of salt that is iodized in the United States
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