This paper examines the impact of a rewards-based incentive program on fruits and vegetable purchases in a supermarket located in a predominately minority community in Philadelphia, Pa. Researchers conducted a four-phase prospective cohort study with randomized intervention and wait-listed control groups. Households in the intervention were provided a 50 percent rebate on fresh or frozen fruits and vegetables, which was reduced to 25 percent during a tapering phase, and then eliminated. Researchers found that households that received the 50 percent rebate purchased both more vegetables and fruits than did the control households. Intervention households purchased an average of eight more servings of vegetables and 2.5 more servings of fruit per week than control households. When the incentive was reduced and then discontinued, household purchases of fruits and vegetables were similar to baseline.
Impact of a Rewards-Based Incentive Program on Promoting Fruit and Vegetable Purchases
Using Rewards-Based Incentives to Increase Purchase of Fruit and Vegetables in Lower-Income Households: Design and Start-Up of a Randomized Trial
This paper reports the design and baseline results of a rewards-based incentive program–the Frequent Buyer Rewards Study–in a large full-service supermarket located in a predominately minority community in Philadelphia, Penn. The Frequent Buyer Rewards Study is a four-phase randomized trial designed to increase the purchase of fruits and vegetables in … More
Incentives that reward healthier food purchases and that provide reinforcement to the consumer have not been systematically and rigorously studied, particularly among lower-income populations. The aim of this study is to determine whether an incentive-based system increases healthier food purchasing practices by lower-income families. The study is a randomized controlled … More
Policymakers worldwide are considering requiring warnings for sugary drinks. A growing number of experimental studies have examined sugary drink warnings’ impacts, but no research to our knowledge has synthesized this literature. To inform ongoing policy debates, this study aimed to identify the effects of sugary drink warnings compared with control … More