Dietary sources of iodine

The iodine content of a variety of foods in East Africa was measured by ICP-MS [276]. Samples were dried and homogenized prior to dissolution. Tellurium was used as an internal standard. Only saltwater fish were found to be a sufficient dietary source of iodine. 

A deficiency of iodine is one of the possible causes of the enlargement of the thyroid gland (goitre). Dietary sources of iodine are often supplemented by iodinated table salt, for which potassium iodide and sodium iodide are used. 

Possible dietary sources of iodine for vegans include iodized salt and seaweed (Lightowler and Davies, 1996). In many developing countries, iodized salt is considered a good medium for iodine prophylaxis. However, although some iodized salt contains 1527-25 57 fig/lOOg (equivalent to 76-128 pg/teaspoon), encouragement to use this... 

The two pre-intervention surveys were conducted to determine the status of urinary iodine levels in a representative sample of Tasmanian primary schoolchildren following more than a decade without regular monitoring. The four post-intervention surveys were conducted to examine the effects on urinary iodine levels following the voluntary fortification of bread with iodine. In addition to the assessment of urinary iodine levels, information on SES and geographical location was collected both pre- and post-intervention. Pre-intervention data on dietary sources of iodine were also collected. 

The 2000—2001 pre-intervention survey included questions about the consumption of key foods that may be dietary sources of iodine iodi2ed salt, ice cream, cream cheese, soy milk, saltwater fish and shell fish, seaweed or seaweed products and preserved cherries. 

Table 128.2 Prevalence of adequate urinary iodine concentration (at least 100rrg/l) in 2000-2001 by subjects categorized by manner, frequency and recency of consumption of dietary sources of iodine... 

Good Dietary Sources of Iodine for Pregnant Women... 

This brief review has highlighted some of the major dietary sources of iodine. Other sources, while not ingested as food, may also contribute significantly, including mouthwashes, toothpaste, and industrial pollution. 

Pharmakiotis, and B. Malamos, Dietary sources of iodine in areas with and without iodine deficiency goiter. Am. J. Clin. Nutr. 23 870 (1970). 

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