Reducing Dietary Added-Sugar Consumption During the Transition to College

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

702 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-09-08

Study Completion Date

2020-10-30

Brief Summary

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The goal of this cluster randomized controlled trial was to compare the effects of two single-session interventions (sugar-intensive vs. general health control) on added sugar intake, motivation to reduce sugar consumption, and factual knowledge about added sugar 6 weeks later, in a sample of first-semester undergraduates.

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Detailed Description

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Excessive sugar consumption is recognized as a critical public health concern. For many young adults, the transition to college presents both risk and a promising opportunity to encourage formation of healthy dietary habits. Capitalizing on this window of opportunity, we conducted a cluster-randomized controlled trial to compare the effects of two single-session interventions on added sugar intake in a sample of first-semester undergraduates. Participants received either an intervention primarily focused on reducing added sugar consumption or a general health behavior intervention with units on physical activity, sleep, and healthy diet. Participants' added sugar intake, motivation to reduce sugar consumption, and factual knowledge about added sugar intake were compared at follow-up.

Conditions

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Dietary Added Sugar Consumption

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Cluster-randomized controlled trial

Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Participants

Participants were unaware that another condition existed.

Study Groups

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Sugar Intensive Treatment

The Sugar-Intensive Intervention touched on exercise, sleep, and other aspects of healthy diet, but focused primarily on added sugar reduction. Beyond defining added sugar, the sugar-intensive intervention also included: information on how sugar is metabolized; description of health risks associated with excessive added sugar; opportunities to rehearse women's and men's recommended daily maxima; a game guessing the sugar content of various foods and beverages; information on proportion of undergraduates at their university who report being motivated to reduce their sugar intake; training in finding added-sugar information in nutritional labels; and concrete suggestions for replacing high-sugar foods and beverages with healthy options, and managing tempting situations.

Group Type EXPERIMENTAL

Sugar Intensive Treatment

Intervention Type BEHAVIORAL

see arm description

General Health Control

The General Health Intervention presentation covered Healthy People 2030 goals regarding physical activity (aerobic exercise, strength training), healthy eating (fruit, vegetable, and whole grain consumption; decreasing consumption of saturated fats and added sugar), and sleep (minimum of 7 hours per night), as well as healthy stress management/emotion regulation. The health benefits/risks associated with each goal were described, along with suggested strategies for achieving each goal. This version of the intervention also included a definition of added sugar and information about the recommended daily added-sugar maxima for women and men, but served mainly as an active control condition for testing the effects of the target intervention of interest.

Group Type ACTIVE_COMPARATOR

General Health Control

Intervention Type BEHAVIORAL

see arm description

Interventions

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Sugar Intensive Treatment

see arm description

Intervention Type BEHAVIORAL

General Health Control

see arm description

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Students aged 18 years and older, enrolled in online sections of a required transition-to-college course at a large public university in the Southwest region of the U.S. All students in online sections of this class received the single-session intervention during their normal class period, early in the Fall 2020 semester, and were eligible to participate.