CTSI Pilot: Improving Adherence to Diabetic Diet

Completed · Not applicable

Conditions studied: Diabetes Mellitus, Type 2, Diet, Healthy, Pre-diabetes

In brief

425 million adults live with diabetes worldwide, and the prevalence of Type 2 diabetes is rising. Dietary approaches are recommended for weight control and diabetes management, but modern environments, characterized by plentiful, unhealthy foods, pose challenges to selecting a healthy diet. Behavioral economics offers a framework for modifying the food environment to encourage individuals with diabetes to select low-calorie and low-sugar foods. The goal of this study is to test novel approaches informed by behavioral economics to promote healthier grocery shopping among diabetic patients. Adults who have Type 2 diabetes or who are at risk for developing Type 2 diabetes will be recruited. Participants will be randomly assigned to 1 of 2 interventions or a control group in which they will shop in-person as usual. The Online intervention will utilize online grocery shopping to promote healthier purchasing. The Defaults intervention will augment this intervention, showing participants a default shopping cart pre-filled with items that correspond to the DASH diet and diabetic diet goals, which they may modify as they like. Receipt data will be collected to quantify the alignment of purchases with diabetic diet goals before, during, and after interventions. Purchases lower in calories, carbohydrates, and sugar and higher in nutritional quality (DASH diet score) are expected in the Defaults group; the Online group is expected to have intermediary results between Defaults and Controls. The investigators will also explore effects of the interventions on spending and dietary intake. This study is intended to demonstrate the efficacy of strategies that leverage behavioral economics principles to make the purchasing of healthier foods easier. The strategies have translational significance as they could be incorporated into clinical treatment, with the potential to improve dietary intake, glucose regulation, weight, and medication needs among diabetic patients.

Key facts

Study ID

NCT04051008

Run by

State University of New York at Buffalo

People needed

65

Starts

2019-10-14

Expected to finish

2020-12-03

Last updated by the study team

2023-12-13

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Must be at least 18 years old
• Must have been diagnosed diabetes or demonstrate diabetes risk as defined by the American Diabetes Association
• Must shop in-person at select local grocery stores at least weekly, and at least 75% of the grocery shopping for the household must be done at these stores
• Must do at least 75% of the grocery shopping for the household
• Must speak English

You may not qualify if…

• Is under 18 years of age
• Does not meet diabetes/risk for diabetes criteria
• Does not shop in-person at select local grocery stores at least weekly
• Does not live in a household in which 75% of groceries come from select local grocery stores
• Does not do at least 75% of the grocery shopping for the household
• Does not speak English
• Receives SNAP or WIC benefits (an exclusion criterion for this study due to incompatibility of EBT cards with the selected online grocery shopping platform at this time)
• Has dietary restrictions or preferences that would not allow them to reasonably partake in the study (i.e. they would not be willing or able to buy/eat many of the staple foods included in default carts/recipe cards)

Where it is running

• State University of New York at Buffalo — Buffalo, New York, United States

Full record on ClinicalTrials.gov

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