Analysis of food supplements containing iodine: a survey of Italian market.
Clin Toxicol (Phila)
; 46(4): 282-6, 2008 Apr.
Article
em En
| MEDLINE
| ID: mdl-18363118
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 microg/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.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Contaminação de Alimentos
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Inquéritos sobre Dietas
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Suplementos Nutricionais
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Iodo
Limite:
Adult
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Child, preschool
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Female
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Humans
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Male
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Pregnancy
País como assunto:
Europa
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article