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The significant shortcomings detected in the nutrition of students in the district of Huánuco (Peru), together with the television advertising observed for products of dubious nutritional value, led us to design and conduct a research project intended to analyse the relationship between the two: The influence of television commercials on the consumption of food products advertised in 2010, which is summarised in this article. In the study we carried out a correlative study of a sample of 120 pupils at different educational establishments. They answered questionnaires, were interviewed and underwent physical examination. We also analysed the food commercials broadcast by television channels and the nutritional value of the products. Chi-square inferential analysis was used. The research showed that the pupils’ health has been adversely affected, with a serious incidence of tooth decay, a problem attributed to the consumption of certain foodstuffs. The study detected a positive relationship, which was highly significant statistically, between attachment to television advertisements and the consumption by the pupils of advertised foods which are rich in sodium, calcium, sugar and calories. Also demonstrated was the interdependence between exposure to television advertising and the consumption of foods with a high fat content, which should be monitored and controlled by government officials.