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Randomized Controlled Trial
. 2021 Nov;111(11):1997-2007.
doi: 10.2105/AJPH.2021.306488. Epub 2021 Oct 28.

Countermarketing About Fruit Drinks, Alone or With Water Promotion: A 2019 Randomized Controlled Trial in Latinx Parents

James Krieger  1 , Taehoon Kwon  1 , Rudy Ruiz  1 , Lina Pinero Walkinshaw  1 , Jiali Yan  1 , Christina A Roberto  1
Affiliations
Randomized Controlled Trial

Countermarketing About Fruit Drinks, Alone or With Water Promotion: A 2019 Randomized Controlled Trial in Latinx Parents

James Krieger et al. Am J Public Health. 2021 Nov.

Abstract

Objectives. To test whether fruit drink countermarketing messages alone or combined with water promotion messages reduce Latinx parents' purchases of fruit drinks for children aged 0 to 5 years. Methods. We performed a 3-arm randomized controlled online trial enrolling 1628 Latinx parents in the United States during October and November 2019. We assessed the effect of culturally tailored fruit drink countermarketing messages (fruit drink‒only group), countermarketing and water promotion messages combined (combination group), or car-seat safety messages (control) delivered via Facebook groups for 6 weeks on parental beverage choices from a simulated online store. Results. The proportion of parents choosing fruit drinks decreased by 13.7 percentage points in the fruit drink‒only group (95% confidence interval [CI] = -20.0, -7.4; P < .001) and by 19.2 percentage points in the combination group (95% CI = -25.0, -13.4; P < .001) relative to control. Water selection increased in both groups. Conclusions. Fruit drink countermarketing messages, alone or combined with water promotion messages, significantly decreased parental selection of fruit drinks and increased water selection for their children. Public Health Implications. Countermarketing social media messages may be an effective and low-cost intervention for reducing parents' fruit drink purchases for their children. (Am J Public Health. 2021;111(11):1997-2007. https://doi.org/10.2105/AJPH.2021.306488).

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Figures

FIGURE 1—
FIGURE 1—
CONSORT Flow Diagram for Randomized Controlled Trial Participants Note. CONSORT = Consolidated Standards of Reporting Trials.
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