BackgroundThe food behaviours in paediatric age can compromise the health and well being of the individual and influence a bad balanced food intake. AimsTo evaluate the Food Behaviour (FB) of children/adolescents with overweight/obesity vs a school community through the ChEAT questionnaire. Methods and MaterialsThe sample was composed of 157 children/adolescents of both genders of 6 to 12 years old were evaluated and divided into two groups: GA (n=92), from the Nutrition Consultation of the Paediatric Services Hospital S João in Porto GB (n=65) and two school groups. The FB were evaluated through ChEAT (Children's Eating Attitude Test – Maloney et al., 1998) – composed of 26 items, a version to children and adolescents adapted from EAT (Garner DM, Garfinkle PE, 1979), being the answers signed in a Likert scale (1‐6). After a recodification was made (0‐3), the punctuation went from 0‐78. The changes of FB were divided in 3 sub‐scales: 1 – aspects related to the compliance of the diet (0‐39); 2 – worry about food and bulimia (0‐18); 3 – Control of food intake (0‐21). The nutrition state of the children/adolescents was evaluated (BMI). The results are presented by the mean average and dp. ResultsThe total sample (M=43,6%; F=56.4%), shows a mean chronological age of 9±2 years (min=6; max=12). Among the children (14,1%) are overweight and obese (85,9%) from GA and from the GB 23% are overweight and 12,3% are obese. It is observed that in both groups, low mean values are presented in the global ChEAT scale (GA=16,4±8,6;GB=10,3±7,7) and in the three sub‐scales: 1‐GA=12±7; GB=5±5; 2‐GA=2±2; GB=1±2; 3‐ GA=3±3; GB=4±4, with significant differences in the sub‐scales 1 and 3.There are observed values of good interne consistency in the global ChEAT scale (α=0.761) and in the sub‐scale 1 (α=0.793) as long as in the sub‐scales 2 and 3 present mean values of (2=0.518; 3=0.503) are presented. ConclusionChEAT is a scale that can be used to evaluate the attitudes and the food habits among the Portuguese paediatric population, therefore it is registered a good sensitivity to the parameters that are supposed to be evaluated.