title: Children whose diet contained olive oil had a lower likelihood of increasing their body mass index Z-score over 1 year.
abstract: OBJECTIVE
  Changes in eating habits may be influential in the ever-increasing rate of childhood obesity. Our aim was to determine whether those children who consume olive oil have a lower risk of weight gain compared with children who consume other oils.
  
  
  METHODS
  The study included 18 girls and 74 boys, all aged 13-166 months. A survey was completed for each subject about eating habits and physical activity. A sample of subcutaneous adipose tissue was also obtained for cellular study. Data were recorded on the mean size of the adipocytes, the number of preadipocytes, and the concentration of particular fatty acids. The weight and height of the children were measured 13 months later.
  
  
  RESULTS
  The likelihood that after 1 year the children would have increased their body mass index (BMI) Z-score above the initial score was less in the children who consumed only olive oil (odds ratio (OR)=0.22; 95% confidence interval (CI): 0.08-0.63; P=0.005). These results remained after adjusting for age, physical activity and BMI (OR=0.19; 95% CI: 0.06-0.61; P=0.005) and after adjusting for age, physical activity and adipocyte volume (OR=0.15; 95% CI: 0.04-0.52; P=0.003).
  
  
  CONCLUSIONS
  Diets with mono unsaturated fatty acid (MUFA)-rich olive oil could reduce the risk of obesity in childhood.
authors.affiliation: Hospital Carlos Haya, Servicio de Endocrinología y Nutrición, Laboratorio de investigación, Málaga, Spain. juanjharo@gmail.com
authors.forename: J J
authors.initials: JJ
authors.lastname: Haro-Mora
authors.forename: E
authors.initials: E
authors.lastname: García-Escobar
authors.forename: N
authors.initials: N
authors.lastname: Porras
authors.forename: D
authors.initials: D
authors.lastname: Alcázar
authors.forename: J
authors.initials: J
authors.lastname: Gaztambide
authors.forename: A
authors.initials: A
authors.lastname: Ruíz-Órpez
authors.forename: S
authors.initials: S
authors.lastname: García-Serrano
authors.forename: E
authors.initials: E
authors.lastname: Rubio-Martín
authors.forename: E
authors.initials: E
authors.lastname: García-Fuentes
authors.forename: J P
authors.initials: JP
authors.lastname: López-Siguero
authors.forename: F
authors.initials: F
authors.lastname: Soriguer
authors.forename: G
authors.initials: G
authors.lastname: Rojo-Martínez
mesh_terms: D000273:Adipose Tissue / Q000166:cytology; D000293:Adolescent; D015992:Body Mass Index; D001835:Body Weight; D002648:Child; D002675:Child, Preschool; D004041:Dietary Fats; D005260:Female; D006801:Humans; D008297:Male; D009765:Obesity / Q000517:prevention & control*; D000069463:Olive Oil; D010938:Plant Oils / Q000008:administration & dosage*; D015430:Weight Gain
chemical_list: D004041:Dietary Fats; D000069463:Olive Oil; D010938:Plant Oils