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Randomized Controlled Trial
. 2022 Dec 20;21(1):75.
doi: 10.1186/s12937-022-00825-6.

The impact of a family web-based nutrition intervention to increase fruit, vegetable, and dairy intakes: a single-blinded randomized family clustered intervention

Vicky Drapeau  1   2   3   4 , Andrée-Anne Harvey  5   6   7   8 , Raphaëlle Jacob  5   6   7   8 , Véronique Provencher  5   8 , Shirin Panahi  9   5   6   7
Affiliations
Randomized Controlled Trial

The impact of a family web-based nutrition intervention to increase fruit, vegetable, and dairy intakes: a single-blinded randomized family clustered intervention

Vicky Drapeau et al. Nutr J. .

Abstract

Background: The importance of adopting healthy eating habits at a young age to prevent obesity and chronic diseases justifies the need for effective interventions.

Objective: This study evaluated the impact of a family web-based nutrition intervention on vegetable and fruit (V/F) and dairy product (DP) consumption, nutrient intakes, diet quality and BMI or BMI z-scores.

Methods: Forty-three families with children aged 8-16 years were randomized to either the family web-based intervention, or web-based general nutrition guidelines (control) over 8 weeks. Nutritional variables were assessed with three-day dietary records while anthropometry (body weight and height) was assessed with standardized measures at baseline (PRE), immediately after the intervention (POST 1) and 3-6 months after the intervention (POST 2). Linear mixed models for repeated measures were used to assess the main effects and their interactions followed by post hoc tests.

Results: The intervention had an effect on DP, total sugar, potassium, magnesium, and calcium in children (Group x Time, P = 0.02 to 0.03) and on DP, V/F juice, carbohydrates, total sugar, saturated fat, protein and calcium in parents (Group x Time, P = 0.01 to 0.03). Post hoc tests revealed children in the intervention group increased their DP intakes immediately after the intervention (POST1) but decreased at follow-up (POST2). No effect of the intervention on V/F, diet quality or BMI was observed.

Conclusion: Compared to general nutrition guidelines, this family web-based nutrition intervention had a modest effect on nutrient intakes, but beneficial effect on DP intakes in the short term.

Trial registration: ClinicalTrials.gov , NCT03798808 , Registered 10 january 2019 - Retrospectively registered.

Keywords: Childhood obesity; Dairy products; Diet quality; Family-based intervention; Fruits and vegetables; Healthy eating.

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Conflict of interest statement

VD and SP were the recipients of the 2015 Yogurt in Nutrition Initiative (YINI) grant. VD had grants from Danone and Dairy Farmers of Canada (DFC). All other authors declare no conflicts of interest.

Figures

Fig. 1
Fig. 1
Flow diagram. P: Parents, C: Children, PRE: Before the intervention, POST 1: immediately after the intervention, POST 2: 3 to 6 months after the intervention. 1Adherence: number of regulation periods/sessions attended by each of the families on a total of three sessions
Fig. 2
Fig. 2
Daily DP intakes for (A) children and (B) parents at baseline (PRE), immediately after (POST 1) and 3–6 months after the intervention (POST 2). Values are presented as means ± standard deviations; Linear mixed models for repeated measures were performed to assess the main effect of group, time and their interactions. Analyses have been adjusted for study project (pilot vs main study). Participants as well as families were added as a random effect. Parents' analyses were adjusted for energy intake baseline values. When an interaction was observed, the Tukey-Kramer’s post hoc test was performed. Different letters (a, b) indicate between-group differences at each time point (P < 0.05). Difference vs. control PRE: − 0.1 (− 0.8, 0.7), POST 1: 0.8 (0.01, 1.6) and POST 2: 0.4 (− 0.4, 1.1) for children and PRE: − 0.1 (− 0.8, 0.6), POST 1: 0.6 (− 0.2, 1.4) and POST 2: 0.7 (− 0.04, 1.5) for parents
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