Introduction
Little is known about where households shop for packaged foods, what
foods and beverages they purchase, and the nutrient content of these
purchases. The objectives are to describe volume trends and nutrient content
(food groups and nutrient profiles) of household packaged foods purchases
(PFP) by store-type.
Methods
Cross-sectional analysis of US households’ food purchases
(Nielsen Homescan) from 2000 to 2012 (n=652,023 household-year
observations) with survey weights used for national representativeness.
Household PFP trends (% volume) by store-type, household purchases
of key food and beverage groups based on caloric contribution by store-type,
and mean caloric and nutrient densities (sugars, saturated fat and sodium)
of household PFP by store-type are analyzed. Data were collected from
2000–2012. Analyses were conducted in 2014–2015.
Results
The proportion of total volume of household PFP significantly
increased from 2000 to 2012 for mass-merchandisers (13.1 to 23.9%),
convenience-stores (3.6 to 5.9%) and warehouse-club (6.2 to
9.8%), and significantly decreased for grocery-chains (58.5 to
46.3%) and non-chain grocerys (10.3 to 5.2%). Top common
sources of calories (%) from household PFP by food/beverage group
include: savory snacks, grain-based desserts and regular soft-drinks. The
energy, total sugar, sodium and saturated fat densities of household PFP
from mass-merchandisers, warehouse-club and convenience-stores were higher,
compared to grocery-stores.
Conclusions
PFP from stores with poorer nutrient density (more energy, total
sugar, sodium and saturated fat-dense), such as warehouse-club,
mass-merchandisers and convenience-stores are growing, representing a
potential US public health concern.