Changes in the sodium content of leading Australian fast-food products between 2009 and 2012.

Unlabelled: OBJECTIVE To define the changes in sodium levels of Australian fast foods between 2009 and 2012 overall, in major food subcategories and by company.

Design: A comparison of mean sodium content was made across 4 years using t tests and mixed models.

Setting: Nutrient content data for fast-food menu items collected from company websites of six large Australian fast-food chains.