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  • Title: Evaluation of the mineral content of infant formulas consumed in Brazil.
    Author: Vieira da Silva S, Mattanna P, Bizzi CA, Richards NS, Barin JS.
    Journal: J Dairy Sci; 2013 Jun; 96(6):3498-505. PubMed ID: 23608492.
    Abstract:
    The mineral content of 10 commercially available milk-based infant formulas widely consumed in Brazil was investigated. The levels of elements (Ca, Cu, Fe, K, Mg, Mn, Na, and Zn) were determined by inductively coupled plasma optical emission spectrometry after microwave-assisted wet digestion. The results were compared with the producers' label declarations and levels proposed by the Codex Alimentarius and the Brazilian National Health Surveillance Agency. The obtained results were in good agreement with certified reference materials, and the relative standard deviation of the measurements was always below 10%, with the exception of Cu (up to 14%). A high degree of variation between the experimental and producers' data was found for trace elements among different brands, with differences as high as 41 and 68% for Cu and Zn, respectively. The content of minerals in the starting formulas was in accordance with levels established by the Codex Alimentarius, with the exception of 1 brand that had a Zn level that was not in agreement with the Codex minimum value. Among follow-up formulas, 2 brands contained levels of Ca and K that were higher than the maximum established by Brazilian standards, and 1 brand contained less than the minimum value recommended for Zn. The guidance upper levels have not been established in the Codex Alimentarius for follow-up formulas, and the maximum value has been established for only 2 of the analyzed minerals. This lack of a standard could be a problem; as shown in the present study, if the Brazilian standard is used, several formulas could be considered out of specification. Despite the limited number of samples evaluated in this work, the levels of some elements were out of specification and special attention by the Brazilian government on the content of minerals in infant formulas is needed.
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