NCT03296878

Food-for-Families: Experimental Grocery Store Study

Food-for-Families: Relationship Between Income, Obesity, and Food Purchasing Using an Experimental Grocery Store Study

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 80 (actual)
• Sponsor: USDA Grand Forks Human Nutrition Research Center · Federal
• Sex: Female
• Age: 18 Years
• Healthy volunteers: Accepted

Summary

This is a study about how the price of foods affects buying choices at the grocery store. The price of foods can have a big impact on what people choose to buy and prices change over time. This study is being done to see how changes in food prices affect what mothers choose for their families.

Detailed description

It is well known that the price of a given food affects the amount of that item individuals will purchase. Yet little is known about how specific groups, such as obese/overweight individuals and those with lower incomes, change their food purchasing decisions depending on food price changes. Evidence shows that these groups have lower quality diets and worse health outcomes than their normal weight and higher income counterparts. Therefore, it is important to gain a better understanding of how food price changes affect purchasing decisions among these population groups in order to develop targeted nutrition interventions to improve their diet quality. To investigate this, the researchers will create a laboratory-based grocery store, in which pictures of foods will be used in lieu of actual foods. Food prices will be indicated on each picture. The participants will be given play money and a budget, and asked to "purchase" foods in the mock grocery store. The price of foods will be changed throughout the study to investigate how participants change their purchasing decisions based on these price changes.

Conditions

• Overweight
• Obesity

Interventions

Type	Name	Description
OTHER	Own-Price Elasticity	The price of eggs will be 75%, 100%, or 125% of the reference price, but the price of other foods will remain the same.
OTHER	Cross-Price Elasticity	The price of eggs will remain the same, but the price of other foods will be 75%, 100%, or 125% of the reference price.

Timeline

• Start date: 2017-10-16
• Primary completion: 2018-03-29
• Completion: 2018-03-29
• First posted: 2017-09-28
• Last updated: 2020-05-20

Locations

1 site across 1 country: United States