Journal of Health and Medical Sciences
Volumen 6, Fascículo 1, 2020
Artículo de Investigación
¿Qué venden los kioscos escolares al implementar la ley sobre composición nutricional de los alimentos y su publicidad?

Rossi, N.; Leytón, B. & Bustos, N.

  • Instituto de Nutrición y Tecnología de los Alimentos. INTA

La correspondencia debe dirigirse a Nelly Bustos Zapata. Email:

Recibido el 25 de Enero del 2020. Aceptado el 15 de Febrero de 2020

ROSSI, N.; LEYTÓN, B. & BUSTOS, N. What do school kiosks sell when implemented the law about food nutritional composition and advertisement? J. health med. sci., 6(1):65-75, 2020.

ABSTRACT: The fast growth in childhood obesity has been linked to the increased intake of high energy density processed food and poor physical activity. In 2016 in Chile the law 20.606 about Food Nutritional Composition and Advertisement, forbids the advertising of food with high calories, saturated fats, sugars, and sodium for children younger than 14 years and the sale of these food products inside schools. This work aimed to identify changes in the food supply and consumption in public school kiosks from Chile with the addition of the law 20.606 about Food Nutritional Composition and Advertisement. A longitudinal study was performed. The sample came from the study “Effectiveness of a food and physical activity intervention oriented to control obesity in children belonging to public schools from three regions of the country” (KIND study), reaching 351 students from 8 to 14 years belonging to three municipal schools. To analyze the supply at the kiosk, every food product along with its nutritional content was registered in an Excel base, for the intake of food it was used the survey from the KIND study and the nutritional state measurement was made by nutritionist standardized in advance. We used the baseline of the data obtained from the KIND study, this data was gathered in 2015 and we compared it to the one from 2017 using the Mac Nemar Test and the Test for proportions of a sample. Every analysis was made with STATA 15 (Copyright 1984-2009 StataCorp). Processed and ultra-processed food (84.8%) still is the most offered in the kiosks where the sweet snacks and candy are featured, keeping the supply at the inside and outside of schools. The foods that children prefer to buy and bring from home in both analyzed periods are the sweet snacks and sugary drinks and juices. With the addition of the law 20.606, the variety of the high critical nutrient food decreased, however, the supply of processed and ultra-processed food in school kiosks still remains.

KEY WORDS: childhood obesity, nutritional composition, KIND study, Mac Nemar test.

Dirección para correspondencia:

Nelly Bustos Zapata

Instituto de Nutrición y Tecnología de los Alimentos


Universidad de Chile




Comunicate con nosotros