title: Diet Quality of Young Adults Enrolling in TXT2BFiT, a Mobile Phone-Based Healthy Lifestyle Intervention.
abstract: BACKGROUND
  Young adulthood is associated with poor dietary habits and vulnerability to weight gain. Population studies have revealed that inadequate fruit and vegetable intake, excessive sugar-sweetened beverages, and frequent takeaway food consumption are dietary habits requiring intervention.
  
  
  OBJECTIVE
  The aim was to examine the dietary patterns and diet quality of overweight young adults on enrollment into a mobile phone-based healthy lifestyle (mHealth) intervention, TXT2BFiT.
  
  
  METHODS
  Baseline diets were analyzed using the online Dietary Questionnaire for Epidemiological Studies version 2. The Healthy Eating Index for Australians (HEIFA) based on the 2013 Dietary Guidelines, was used to rate individual diets according to intake of core foods and deleterious nutrients including sugar, sodium, saturated fat, and alcohol. Findings were compared with the 2011 Australian National Nutrition and Physical Activity Survey (NNPAS). Gender differences were assessed with t tests and chi-square tests. ANOVA models were used to determine linear trends of core and noncore food intake and nutrients across quartiles of HEIFA scores. Associations between HEIFA score, sugar-sweetened beverages, and takeaway food consumption were assessed using linear regression analysis.
  
  
  RESULTS
  Diets of 230 participants (females: n=141; males: n=89; body mass index: mean 27.2, SD 2.5 kg/m(2)) were analyzed. The mean diet quality score was 45.4 (SD 8.8, range 21.7-77.0) out of 100 points, with no significant difference between genders. Compared with the NNPAS data for adults aged 19-30 years, this cohort had a lower intake of some core foods and higher intake of alcohol and saturated fat. Better quality diets were associated with higher intakes of fruits, vegetables, and wholegrains (P<.001). Takeaway food (P=.01) and sugar-sweetened beverage consumption (P<.001) were negatively associated with diet quality.
  
  
  CONCLUSIONS
  Overweight young adults had poorer diets compared with the reference Australian population within the same age group. This study reinforces that gender-specific interventions are required, as is the current practice in TXT2BFiT, with a need to reduce sodium and alcohol intake in males and sugar intake in females. It also confirms the need to increase fruit and vegetable intake and reduce takeaway food consumption in this population, with additional focus on saturated fat and wholegrain intake.
authors.affiliation: Charles Perkins Centre, School of Molecular Bioscience, University of Sydney, Sydney, NSW, Australia. mnou2973@uni.sydney.edu.au.
authors.forename: Monica Marina
authors.identifier: http://orcid.org/0000-0003-0971-3181
authors.initials: MM
authors.lastname: Nour
authors.forename: Kevin
authors.identifier: http://orcid.org/0000-0002-9679-9827
authors.initials: K
authors.lastname: McGeechan
authors.forename: Annette Ty
authors.identifier: http://orcid.org/0000-0002-0919-330X
authors.initials: AT
authors.lastname: Wong
authors.forename: Stephanie R
authors.identifier: http://orcid.org/0000-0001-5390-3922
authors.initials: SR
authors.lastname: Partridge
authors.forename: Kate
authors.identifier: http://orcid.org/0000-0002-3653-3963
authors.initials: K
authors.lastname: Balestracci
authors.forename: Rajshri
authors.identifier: http://orcid.org/0000-0002-7939-1790
authors.initials: R
authors.lastname: Roy
authors.forename: Lana
authors.identifier: http://orcid.org/0000-0003-1017-5827
authors.initials: L
authors.lastname: Hebden
authors.forename: Margaret
authors.identifier: http://orcid.org/0000-0002-6478-1374
authors.initials: M
authors.lastname: Allman-Farinelli
keywords: eHealth; food habits; mHealth; overweight; telemedicine; young adults