title: Changes in beverage consumption among adolescents from public schools in the first decade of the century XXI.
abstract: OBJECTIVE
  To evaluate the changes in beverage consumption among adolescents between 2003 and 2008.
  
  
  METHODS
  Two school-based cross-sectional studies were carried out with public school students (12 to 19 years-old) from Niterói, Rio de Janeiro, Brazil. Data from three food records were used to estimate daily, weekdays and weekend average consumption (volume and percent contribution for total daily energy intake) of milk and milk-based beverages, sugar sweetened beverages, fresh squeezed fruit juices, caffeinated and alcoholic beverages. Beverage consumption age-adjusted means for weekdays and weekends were compared using linear regression (Generalized Linear Models - GLM).
  
  
  RESULTS
  A total of 433 adolescents were examined in 2003, and 510 in 2008. The prevalence of overweight was 17% in 2003 and 22% in 2008 (p > 0.05). Milk was the most consumed beverage, being reported by 89% of adolescents, followed by sodas (75%). In general, in the five-year period, there was an increase in the prevalence of consumption of alcoholic drinks, guarana syrup refreshment, and processed fruit drinks, especially on weekdays. The soft drink was the largest contributor to the total energy consumption, corresponding on average to 4% of daily energy intake.
  
  
  CONCLUSIONS
  The main changes in the beverage consumption among adolescents from Niterói, in the first decade of the XXI century, were the tendency to reduce the consumption of milk and the increase in the consumption of processed and alcoholic beverages.
authors.affiliation: Departamento de Nutrição Social e Aplicada, Universidade Federal do Rio de Janeiro - Rio de Janeiro (RJ), Brasil.
authors.forename: Luana Silva
authors.initials: LS
authors.lastname: Monteiro
authors.affiliation: Departamento de Nutrição Social e Aplicada, Universidade Federal do Rio de Janeiro - Rio de Janeiro (RJ), Brasil.
authors.forename: Thaís Meirelles de
authors.initials: TM
authors.lastname: Vasconcelos
authors.affiliation: Departamento de Nutrição Social e Aplicada, Universidade Federal do Rio de Janeiro - Rio de Janeiro (RJ), Brasil.
authors.forename: Gloria Valéria da
authors.initials: GV
authors.lastname: Veiga
authors.affiliation: Departamento de Nutrição Social e Aplicada, Universidade Federal do Rio de Janeiro - Rio de Janeiro (RJ), Brasil.
authors.forename: Rosângela Alves
authors.initials: RA
authors.lastname: Pereira
mesh_terms: D000293:Adolescent; D000818:Animals; D001628:Beverages / Q000706:statistics & numerical data*; D001938:Brazil; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D017150:Public Sector; D012574:Schools; D013997:Time Factors; D055815:Young Adult