The Healthfulness of Foods Purchased at Dollar Stores: Insights from Household Scanner Data from 2008 to 2020
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View abstract on PubMed
Summary
This summary is machine-generated.Dollar stores are rapidly expanding, but their food offerings are less nutritious. While dollar store purchases are less healthy, overall household diet quality remains similar, suggesting compensatory healthier eating elsewhere.
Area Of Science
- Food retail and consumer behavior analysis
- Public health and nutrition research
Background
- Dollar stores represent the fastest-growing food retail sector over the last decade.
- The nutritional quality of food offerings in dollar stores is generally lower than in other retail formats.
- The impact of dollar store food purchasing on overall household dietary healthfulness remains largely unknown.
Purpose Of The Study
- To compare the healthfulness and energy content of foods purchased from dollar stores versus other retail channels.
- To analyze the association between dollar store food purchasing and overall household dietary patterns.
Main Methods
- Analysis of nationally representative household consumer purchase data from 2008-2020 (Circana Consumer Network).
- Inclusion of 183,283 households for calorie calculations and 76,520 households for Healthy Eating Index 2015 (HEI-2015) scores.
- Statistical modeling including fractional logistic regression to identify factors associated with dollar store purchases and comparison of HEI-2015 scores.
Main Results
- Dollar stores' share of household calorie purchases significantly increased from 3.4% in 2008 to 6.5% in 2020.
- Higher calorie purchases from dollar stores were associated with factors such as race/ethnicity, rural location, and income.
- Foods purchased from dollar stores were less healthy; however, overall household diet healthfulness (HEI-2015 scores) did not significantly differ between households with varying dollar store purchase shares.
Conclusions
- The expansion of dollar stores represents a significant shift in the food retail environment.
- Despite the lower nutritional quality of foods directly purchased from dollar stores, households may be maintaining or improving their overall diet healthfulness through other food purchasing channels.
- Further research is needed to understand the long-term public health implications of this evolving retail landscape.
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