Clinical Trial

The GRoceries Aimed at Increasing Nutrition Study

Study acronym: GRAINS
Recruiting
View on ClinicalTrials.gov →
Summary
Only 2% of Americans meet the recommended levels of whole grain consumption, despite its association with reduced risk of type 2 diabetes. This study aims to assess if consumers with prediabetes or type 2 diabetes can be encouraged to switch from buying refined grain products to whole grain products when shopping for groceries online. The study will use personalized marketing strategies, with or without discounts which adjust based on purchasing behavior, to promote whole grain consumption.
Protocol Amendment History 3 amendments
This ClinicalTrials.gov record has been amended 3 times since 2025-09-02; most recent amendment 2026-07-09.
Status change: Not Yet Recruiting → Recruiting 2025-10-15
Trial Details
NCT Number NCT07167004
Lead Sponsor University of Pennsylvania
Collaborators: National Institute on Aging (NIA), American Heart Association
Conditions Type 2 Diabetes, Type II Diabetes Mellitus, Type II Diabetes, Pre-diabetes, Pre-diabetic, Pre-diabetic State, Type 2 Diabetes Mellitus (T2DM), Type 2 Diabetes Mellitus +1 more
Enrollment 216 participants
Start Date 2025-10-14
Primary Completion 2027-02-16 (estimated)
Study Completion 2027-02-16 (estimated)
Updated on ClinicalTrials.gov 2026-08-06