This article corrects:

  1. Relationship between smoking and metabolic syndrome Volume 69, Issue 12, 745–753, Article first published online: 1 December 2011

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.