1. Objectifs

Intentions :
«The primary objective of this study was […] to determine the long-term effects of a 6-month dietary intervention delivered through an evidence-informed healthy eating blog written by an RD [registered dietician] on dietary intakes—with a focus on vegetables and fruit and milk and alternatives consumption—diet quality, eating behaviours, food parenting practices, and body weight in Canadian mothers of 2- to 12-year-old children. The secondary objectives of this study were to examine the long-term effects of the blog on mothers’ children dietary intakes and diet quality and to explore potential predictors of long-term healthier dietary patterns in mothers and their children.» (p. 2)

Questions/Hypothèses :
«It was hypothesised that mothers exposed to the blog, as well as their children, will show better dietary habits 6 months after the end of the intervention compared with those from a control group with no exposure to the study blog.» (p. 2)

2. Méthode

Échantillon/Matériau :
«Participants of this study were mothers aged 18 years old or over and recruited in Quebec City, Canada, between October 2015 and February 2017, using institutional email lists, flyers, newspapers, Facebook advertisements, and word of mouth. Mothers were eligible if they had an Internet access, had at least one child aged between 2 and 12 years old, were primarily responsible for food purchases and preparation in the household, and consumed fewer than the 2007 edition of Canada’s Food Guide’s recommended seven servings per day of vegetables and fruit and/or two servings per day of milk and alternatives […] as assessed by one dietary recall performed by an RD.» (p. 3) «During a 6-month intervention period conducted from January 2016 to September 2017, an RD blogger published one new blog post each week […]. Additionally, the RD blogger asked open-ended questions at the end of every blog post to initiate discussions with mothers regarding their realities and perceptions about the advantages/disadvantages and the barriers/facilitators to adopt healthier eating behaviours.» (p. 3)

Instruments :
Questionnaire

Type de traitement des données :
Analyse statistique
Analyse de contenu

3. Résumé

«Globally, there was no evidence of long-term differences in mean dietary intakes and food-related behaviours between mothers exposed to the blog and their children compared with the control condition, which contrasts with the a priori hypothesis, but is consistent with the short-term intervention findings […].» (p. 7) According to the authors, «[s]elf-efficacy and positive attitude towards family meal planning as well as some food conceptualisation skills, such as reducing the fat and sugar content of recipes to make them healthier, were associated with higher likelihood of healthier dietary patterns in mothers at follow-up including the consumption of at least five servings per day of vegetables and fruit and the consumption of at least two servings per day of milk and alternatives. Involvement of children in household food activities, such as participating in grocery shopping and helping prepare meals, were associated with higher likelihood of better diet quality in children at follow-up.» (p. 11)