Résumé
The study of the factors that regulate high energy food intake is especially relevant nowadays due to the high prevalence of overweight and obesity. Food intake regulation can be divided in two basic processes, namely satiation and satiety. Satiation is the process that determines the moment in which feeding stops and regulates the amount of ingested food during a single meal. Satiety is the interval between meals and regulates the time elapsed between two meals. The longer the interval, the lower energy intake. Each of these processes are regulated by different factors, which are here reviewed.
Sujets)
Humains , Régulation de l'appétit/physiologie , Satiété/physiologie , Ration calorique/physiologie , Sensation de satiété/physiologie , Sensation/physiologie , Facteurs temps , Consommation alimentaire/physiologieRésumé
El objetivo de este estudio fue analizar el efecto de la información nutricional sobre el consumo de frutas y verduras. Participaron 25 niños entre los 3 y 5 años, expuestos a alimentos con alto y bajo valor nutricional. Los niños fueron divididos en 2 grupos (piloto y experimental) y expuestos a 4 fases. El grupo experimental recibió información sobre hábitos alimenticios, valor nutricional de los alimentos y beneficios del consumo de frutas y verduras. Los resultados mostraron que la información nutricional modificó la conducta alimentaría, ya que el consumo de alimentos poco nutritivos disminuyó. Sin embargo, el consumo de frutas y verduras no se incrementó. Los datos sugieren que la información nutricional influye en la adquisición de conductas alimentarías en niños preescolares, siempre y cuando incluya una duración y frecuencia adecuadas y sea reforzada en casa a través del modelamiento de los familiares.
This study evaluated effects of nutritional information about fruits and vegetables consumption. Participants were 25 children between 3 and 5 years-old, which were exposed at high and low nutritional foods. Subjects were divided in two groups (experimental and control) and exposed to four phases. Experimental group received nutritional information about dietetic habits, nutritional facts and benefits of fruits and vegetables consumption. Results showed that nutritional information modified the eating behaviour. Non-nutritious food consumption diminished, but fruits and vegetables consumption not increased. Data suggest that nutritional information modifies eating behaviour development in preschoolers, but is necessary a suitable duration and frequency with adequate reinforced in house through model of parents.