Estimation of dietary iodine intake of Americans in recent years
1981
Park, Youngmee K. | Harland, Barbara F. | Vanderveen, John E. | Shank, Fred R. | Prosky, Leon
Dietary data from the Total Diet Study for 3 age groups of Americans (infants, toddlers, and young adult males) was analyzed for iodine intakes and sources. The dietary information was based on market basket samples from 30 urban areas in 4 geographic regions; the salt included was non-iodized. Analysis of prepared foods was done by the colorimetric method, which has been shown to underestimate iodine content by about 20%. Results indicated that average iodine intakes are far greater than recommended. About 95% of intake came from 4 of the 12 commodity groups--dairy products, grain products, sugars, and meat, fish, and poultry. The sources of iodine in dairy and animal products are animal feeds, medications, and sanitary washes. Iodine in grain products comes from many sources, including dough conditioners and food coloring. Iodine in sugars and adjuncts seems to come from red food coloring and milk ingredients. There was no significant general change in intake between 1974 and 1978, although infants' and toddlers' consumption did increase. (cj)
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