Original article
Adherence to the Mediterranean diet in children: Is it associated with economic cost?
G. Albuquerquea, P. Moreiraa,b,c, R. Rosáriod,e, A. Araújoa, V.H. Teixeiraa,b, O. Lopesf, A. Moreirag,h, P. Padrãoa,c,,
a Faculty of Nutrition and Food Sciences, University of Porto, Porto, Portugal
b Research Centre in Physical Activity, Health and Leisure, University of Porto, Porto, Portugal
c EPI Unit – Institute of Public Health, University of Porto, Porto, Portugal
d Education School, Child Study Centre, University of Minho, Braga, Portugal
e Nursing School, University of Minho Braga, Portugal
f Erdal Association, Guimarães, Portugal
g Department of Immunology, Faculty of Medicine, University of Porto, Porto, Portugal
h Department of Immunoallergology, Hospital of São João, Porto, Portugal
Received 17 October 2016, Accepted 23 January 2017

To assess how the diet cost is associated with socio-demographic factors and adherence to Mediterranean diet in children.


Data were obtained from a community-based survey of children selected from public elementary schools in Portugal. Of a total of 586 children attending these schools, 464 (6–12 years), were studied. Dietary intake was assessed by a 24hour recall and the adherence to Mediterranean diet was evaluated through the KIDMED index. The cost of the diet was calculated based on the collection of food prices of a national leader supermarket, and expressed as Total Daily Cost (TDC) and Total Daily Cost-Adjusted for Energy (TDEC). Anthropometric measures were taken and socio-demographic data were gathered from a questionnaire filled by parents. Logistic regression was used to quantify the association between diet cost, socio-demographics and adherence to Mediterranean diet.


The average TDC was 4.58€ (SD=1.24). Most children (69.1%) reported medium adherence to Mediterranean diet, and 4.6% rated the higher score. TDC was higher for children with highest adherence to Mediterranean diet, compared to those with lowest adherence [TDC: OR=5.70 (95% CI 1.53, 21.33), p for trend=0.001; TDEC: OR=2.83 (95% CI 0.89, 8.96, p for trend 0.018)]. No meaningful variation in the diet cost with age and parental education was observed.


Higher adherence to Mediterranean diet was associated with higher diet cost in children.

Diet cost, Mediterranean diet, Children

Open Access

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Porto Biomedical Journal is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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