Introduction:

social or school factors influence the acquisition and selection of foods to be consumed.

Objective:

identifying the socioeconomic or school level that has the greatest weight in the acquisition of food in Mexican households.

Methods:

cross-sectional, retrospective and comparative study based on the database of the 2018 National Household Expenditure-Income Survey of Mexico. We worked with the national total of 73,274 Mexican households. The variables considered were: expenditure module of food and beverages, school grade of the head of the family and socioeconomic status to which the household belongs. For the statistical analysis, the following tests were used: linear regression analysis, as well as variance analysis, Snedecor's F test, post-hoc test and Schefé's confirmatory test.

Results:

socioeconomic status has a greater weight (p < 0.001) for food acquisition. Sugary drinks were the most widely acquired in all social and school levels. The lowest social level is the one who acquires the most cereals, fats, sugars and legumes, while for high school levels animal foods and processed meats are the ones most frequently acquired.

Conclusion:

the socioeconomic level has a great weight in the acquisition and variety of foods, although this does not mean that foods obtained are the healthiest. Therefore, public policies are urgently required in favor of nutritional education at all school levels, which promote the purchase of healthy foods and compete with commercial advertising strategies.

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