N/A
N=167
Multi-level Supermarket Discount Study
Obesity
Bottom Line
View on ClinicalTrials.gov: NCT04178824 ↗Enrolled (actual)
167
Serious AEs
0.0%
Results posted
Sep 2024
Primary outcome: Primary: Fruit Intake as Assessed by 24-h Dietary Recalls — 99.6; 112; 93.4; 127 grams
Study Design & Population
- Study type
- Interventional
- Phase
- N/A
- Interventions
- Discount Intervention (Behavioral)
- Age
- Adult, Older Adult · 18+ yrs
- Sex
- All
- Sponsor
- Icahn School of Medicine at Mount Sinai
- Primary completion
- Nov 2022
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Fruit Intake as Assessed by 24-h Dietary Recalls |
99.6; 112; 93.4; 127; 120; 112 | — |
| PRIMARY Vegetable Intake as Assessed by 24-h Dietary Recalls |
185; 126; 158; 190; 192; 136 | — |
| PRIMARY Bottled Water Intake as Assessed by 24-h Dietary Recalls |
93; 178; 132; 137; 156; 190 | — |
| PRIMARY Seltzer Water Intake as Assessed by 24-h Dietary Recalls |
50.4; 47.9; 134; 64.4; 65.2; 157 | — |
| PRIMARY Diet Soda Intake as Assessed by 24-h Dietary Recalls |
1.89; 33.6; 37.5; 12.5; 78.9; 15.1 | — |
| PRIMARY Total Non-caloric Beverage Intake as Assessed by 24-h Dietary Recalls |
146; 260; 304; 213; 285; 362 | — |
| SECONDARY Body Weight |
84; 83.5; 83.3; 84.3; 82.8; 84.6 | — |
| SECONDARY Body Mass Index (BMI) |
29.7; 29.7; 29.3; 29.7; 29.5; 29.6 | — |
| SECONDARY Percent Body Fat |
34; 33.2; 33.4; 33.5; 32.6; 33.3 | — |
| SECONDARY Waist Circumference |
37.9; 37.5; 38.3; 38.3; 37.7; 38.6 | — |
| SECONDARY Fasting Glucose |
87.6; 87.4; 85; 91.5; 91.5; 86.3 | — |
| SECONDARY Cholesterol Level |
182; 184; 192; 173; 183; 194 | — |
| SECONDARY Blood Pressure |
121; 117; 122; 76.1; 73; 77.7 | — |
| SECONDARY Gross Weekly Purchasing of Fruits and Vegetables |
— | — |
Summary
The study team's objective is to test the effect of supermarket discount levels on fruit and vegetable (F&V) and non-caloric beverage purchasing and consumption, as well as health outcomes. The study team will implement this economic intervention in a local supermarket chain to assess the effects of a 32-week intervention of fruit and vegetable (F&V) and non-caloric beverage discounts of 30%, 15%, and 0% (control group) on purchasing, dietary intake, and health outcomes, including body weight and composition, blood pressure, and biochemical markers of cardiovascular disease risk. The 32-week intervention will be preceded by an 8-week baseline and will have a follow-up period of 16 weeks. There will be no discounts in effect during the baseline and follow-up periods.
Eligibility Criteria
Inclusion Criteria
- BMI: 24.5 - 50
- Weight Stable (±5% body weight in last 3 mo)
- Accessible by telephone
- Living in NYC and not planning move
- Primary household food shopper
- ≥50% of food shopping at Foodtown/Brooklyn Harvest and agrees to 100% shopping at store during study
- Consumption of >50% of food shopping
- Eat out or take out ≤5 times weekly
Exclusion Criteria
- Pregnant or contemplating pregnancy
- Enrolled in related studies
- Active weight loss program
- Presence of serious medical (e.g. cancer, diabetes) or psychiatric disease (e.g. bipolar)
- Changes in medications or smoking in past 3 mo
- Excessive alcohol use (≥4 drinks/day) or illicit drug use
- Planning a vacation ≥ 4 consecutive weeks or 6 total weeks during study
- Receiving SNAP benefits
Data sourced from ClinicalTrials.gov (NCT04178824). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.