Iodine is an essential nutrient for humans as a critical constituent of thyroid hormones; both iodine deficiency and excess have adverse consequences for the thyroid gland. The aims of this research were to compare claimed concentrations of iodine with measured ones in various iodine-supplemented products, estimate the amount of iodine ingested by Italian consumers who use these products, and compare the calculated intakes to the Recommended Daily Allowance and tolerable Upper Level. A convenience sample of 43 food supplements was analyzed for iodine concentration. Analytical values resembled those declared in the label in fewer than half of the examples; in four cases, the maximal daily dose was higher than the tolerable upper level for iodine of 600 μg/day. Labeling of iodine-rich food supplements appears to be unreliable and caution should be exercised in the consumption of food supplements rich in iodine as there is a risk of exceeding the established safe upper level of daily intake.

Analysis of food supplements containing iodine : a survey of Italian market / RESTANI P; PERSICO A; BALLABIO C; FUGGETTA D; COLOMBO M. - In: CLINICAL TOXICOLOGY. - ISSN 1556-3650. - 46(2008), pp. 282-286.

Analysis of food supplements containing iodine : a survey of Italian market

COLOMBO, Maria Laura
2008

Abstract

Iodine is an essential nutrient for humans as a critical constituent of thyroid hormones; both iodine deficiency and excess have adverse consequences for the thyroid gland. The aims of this research were to compare claimed concentrations of iodine with measured ones in various iodine-supplemented products, estimate the amount of iodine ingested by Italian consumers who use these products, and compare the calculated intakes to the Recommended Daily Allowance and tolerable Upper Level. A convenience sample of 43 food supplements was analyzed for iodine concentration. Analytical values resembled those declared in the label in fewer than half of the examples; in four cases, the maximal daily dose was higher than the tolerable upper level for iodine of 600 μg/day. Labeling of iodine-rich food supplements appears to be unreliable and caution should be exercised in the consumption of food supplements rich in iodine as there is a risk of exceeding the established safe upper level of daily intake.
46
282
286
Food safety, Iodine, Food supplements, Upper level, Consumer health
RESTANI P; PERSICO A; BALLABIO C; FUGGETTA D; COLOMBO M
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/102104
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