SWITCH Diets Study: Self-monitoring With Internet Technology to Choose Healthy Diets

NCT ID: NCT06245369

Last Updated: 2025-03-21

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

106 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-04-15

Study Completion Date

2025-03-18

Brief Summary

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The goal of the Self-monitoring With Internet Technology to Choose Healthy Diets (SWITCH) study is to examine a 12-week remotely delivered program designed to help adults adopt a healthy dietary lifestyle and lose weight in a diverse cohort of adults with overweight/obesity.

The intervention uses a self-determination theory framework to provide a deeper understanding of the factors that influence dietary behavior within the context of tracking. This study incorporates autonomy-supportive strategies to encourage participants to feel more in control of their dietary choices and will provide information and resources to boost participant's competence in achieving their dietary goals. The intervention includes weekly learning modules to support healthy eating and weight loss and daily dietary tracking with visual feedback, all accessible within the SWITCH app.

Detailed Description

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The SWITCH study is a 12-week remotely delivered, randomized behavioral intervention. Participants will be randomized to one of two groups: 1) SWITCH tracking nutrients to decrease (n=50) or 2) SWITCH tracking nutrients to increase (n=50). Participants will attend a study orientation, complete all baseline measures, be randomized, and then attend a training session for their group. In addition, participants will complete assessment at baseline and 12 weeks.

Intervention Design:

Diet tracking. Participants in both groups will be asked to track all meals, snacks, and beverages via the SWITCH app and complete a weekly learning module. Both groups will receive the same intervention, but the targeted nutrient goals and the in-app display of daily intake will differ between groups. Participants will be given goals to either increase certain nutrients or to decrease certain nutrients.

Diet related education to support healthy eating and weight loss will be provided each week within the SWITCH app. Each module includes some or all (as applicable) of the following components: A brief educational video discussing the week's topic, a video sharing ideas for applying the educational content into daily life, "meal swap" examples, a weekly goal or challenge and example recipes.

Conditions

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Overweight and Obesity Pre-diabetes

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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SWITCH tracking healthy nutrients

Participants allocated to this group will be given goals to reach a recommended daily intake of nutrients in which US adults tend to not consume enough. Recommended amounts will be based off of age and sex, in line with the US Dietary Guidelines.

Group Type EXPERIMENTAL

learning modules (within app)

Intervention Type BEHAVIORAL

Behavioral:

Participants will have access to a weekly learning module created as Kahoot courses. Each module will include some or all (as applicable) of the following:

* A brief educational video discussing the week's topic
* A brief video sharing ideas for applying the educational content into daily life
* PDF of "meal swap" examples
* A weekly goal or challenge
* Recipes

SWITCH app (self-regulation features) - Experimental

Intervention Type BEHAVIORAL

Behavioral:

Diet (track by in app database). App homepage displays dietary intake graph -circles -. Participants will see an empty circles for the goal nutrients at the start of each day, which will fill up as the participant tracks his/her food intake. If the participant consumes an excess beyond the nutrient intake goal, the circle will remain entirely full.

standard SWITCH app

Participants in this group will be given goals to reduce intake of nutrients in which US adults tend to consume too much. Personalized daily intake goals for nutrients will be based on age, weight, sex, and the US Dietary Guidelines.

Group Type ACTIVE_COMPARATOR

learning modules (within app)

Intervention Type BEHAVIORAL

Behavioral:

Participants will have access to a weekly learning module created as Kahoot courses. Each module will include some or all (as applicable) of the following:

* A brief educational video discussing the week's topic
* A brief video sharing ideas for applying the educational content into daily life
* PDF of "meal swap" examples
* A weekly goal or challenge
* Recipes

SWITCH app (self-regulation features) - Comparator

Intervention Type BEHAVIORAL

Diet (track by in app database). App homepage displays dietary intake graph -circles -.

Participants allocated to the control group, tracking intake of nutrients to lower, will see a full circle at the start of each day which depletes, or empties, as the participant tracks his/her food intake. If the participant consumes an excess beyond the nutrient intake goal, the circle will remain entirely empty and the reported totals below the intake circles will display the current intake totals.

Interventions

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learning modules (within app)

Behavioral:

Participants will have access to a weekly learning module created as Kahoot courses. Each module will include some or all (as applicable) of the following:

* A brief educational video discussing the week's topic
* A brief video sharing ideas for applying the educational content into daily life
* PDF of "meal swap" examples
* A weekly goal or challenge
* Recipes

Intervention Type BEHAVIORAL

SWITCH app (self-regulation features) - Experimental

Behavioral:

Diet (track by in app database). App homepage displays dietary intake graph -circles -. Participants will see an empty circles for the goal nutrients at the start of each day, which will fill up as the participant tracks his/her food intake. If the participant consumes an excess beyond the nutrient intake goal, the circle will remain entirely full.

Intervention Type BEHAVIORAL

SWITCH app (self-regulation features) - Comparator

Diet (track by in app database). App homepage displays dietary intake graph -circles -.

Participants allocated to the control group, tracking intake of nutrients to lower, will see a full circle at the start of each day which depletes, or empties, as the participant tracks his/her food intake. If the participant consumes an excess beyond the nutrient intake goal, the circle will remain entirely empty and the reported totals below the intake circles will display the current intake totals.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Age between 18 and 64 years.
* BMI between 25 - 49.9 kg/m2
* Have 2 risk factors for T2DM in addition to having overweight or obesity (as defined by the NIDDK).
* Own and use a smartphone with a data plan.
* Must be willing and able to change dietary intake.
* Be free of major health or psychiatric diseases, drug, or alcohol dependency.
* Willing to sign informed consent.
* Own a digital body weight scale, have regular access, or be willing to purchase one

Exclusion Criteria

* Currently participating in a weight loss program
* Has lost more than 10 pounds in the past 6 months.
* Diagnosed with type 2 diabetes or currently using medications that may impact blood glucose.
* Pregnant (or have been pregnant in the last 6 months), anticipating becoming pregnant in the next 12 months, or currently breastfeeding.
* Having an eating disorder.
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of South Carolina

OTHER

Sponsor Role lead

Responsible Party

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Brie Turner-McGrievy

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Brie Turner-McGrievy, PhD

Role: PRINCIPAL_INVESTIGATOR

University of South Carolina

Locations

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Prevention Research Center, University of South Carolina

Columbia, South Carolina, United States

Site Status

Countries

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United States

Other Identifiers

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Pro00132921

Identifier Type: -

Identifier Source: org_study_id

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