Multi-level Supermarket Discount Study

ID#: NCT04178824

Age: 18 - 70 years

Gender: All

Healthy Subjects: Accepts Healthy Volunteers

Study Phase: N/A

Recruitment Status: Recruiting

Start Date: September 01, 2016

End Date: March 01, 2021

Contact Information:
Allan Geliebter, PhD
(212) 523 - 4184
Amanda Lister, MA
(201) 233 - 4679
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.

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