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Packaged food sampling


Packaged food data was collected from selected hypermarkets, supermarkets, membership food stores, and convenience stores in the six most densely populated cities of Mexico: Mexico City, Guadalajara, Queretaro, Monterrey, Hermosillo, and Cuernavaca. Stores include: 7 Eleven, Walmart, Bodega Aurrera, Bodega Express, Chedraui, City Market, Comercial Mexicana, Costco, Extra, Fresko, Ley, Mega Comercial, Mini-super, Oxxo, Sam’s Club, Santa Fe, Smart, Soriana, Sumesa, Superama, Vimark, Waldos, and other grocery stores that were not part of any franchise. Photographs of the packaged food and each part of the label were taken for all available food products at the time of data collection in the aisle of the stores. Data from the photographs were entered into a database, including product name, brand, price, claims, serving size, nutrition content and supermarket location.

Products were classified into 12 food groups and 14 subgroups, for which mean, standard deviation, median and interquartile range, and minimum and maximum values were calculated for sodium content (mg per 100 g of product).

Data source

Sodium Content of Processed Foods Available in the Mexican Market

Citation: Nieto C, Tolentino-Mayo L, Medina C, Monterrubio-Flores E, Denova-Gutiérrez E, Barquera S. Sodium Content of Processed Foods Available in the Mexican Market. Nutrients. 2018;10(12):2008. Published 2018 Dec 19. doi:10.3390/nu10122008


Claudia Nieto

Researcher, Center for Research in Nutrition and Health, National Institute of Public Health, Cuernavaca 62100, Mexico

Institution leading data collection

Mexican National Institute of Public Health

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