Researchers at The University of Sydney, the University Versailles St-Quentin and A. Pare Hospital, Boulogne-Billancourt in France, McGill University in Montreal, University of London, The University of Auckland in New Zealand, the Center for Science in the Public Interest in Washington and The University of Calgary compared the the salt contained in food offered by six fast-food chains.
Mean salt contents were calculated and compared within and among Australia, Canada, France, New Zealand, the United Kingdom and the United States -- and Burger King, Domino's Pizza, Kentucky Fried Chicken, McDonald's, Pizza Hut and Subway.
The study, published in the Canadian Medical Association Journal, found the salt content of fast-food varies substantially, not only by type of food, but by company and country. Fast-food in Canada and the United States had higher sodium levels than in Britain and France.
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