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In the article by Cena et al., which appeared in the December 2011 issue (Nutr Rev. 2011;69:745–753. DOI: 10.1111/j.1753-4887.2011.00446.x), a reference was inadvertently omitted from page 747. Information in paragraphs 6, 7, and 8 was derived from reference 111, cited elsewhere in the article.