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Plant Foods Hum Nutr ; 76(2): 196-202, 2021 Jun.
Article in English | MEDLINE | ID: mdl-33825090

ABSTRACT

Data has indicated that gluten-free (GF) foods are more expensive and have lower nutritional value than their gluten-containing (GC) counterparts. The aim of the present study was to compare the cost and nutrient content between GF and GC staple foods and determine whether the number and price of GF staple foods differed based on type of store or location within Winnipeg, Canada. Twelve grocery stores (2 chain stores/quadrant;1 local store/quadrant) in the four quadrants (northwest, northeast, southwest, southeast) of Winnipeg were visited to identify GF staple products (bread, flour, cereal, pasta) along with a GC comparator. A total of 819 GF products along with GC comparators were identified. The median cost of GF products ($1.50/100 g) was 131 % greater than that of GC ($0.65/100 g) (p < 0.0001). The greatest difference in cost was between GF and GC flour, with the least difference occurring between GF and GC cereal. GF products were 58, 36 and 100 % lower in iron, protein and saturated fat (p < 0.0001) than their GC comparators, respectively. The number of GF staple products was 370 % higher (p < 0.007) at chain stores than at local stores, whereas store location did not significantly affect the number of GF products available. The greatest difference in number of different GF foods based on store type was for cereals, with the least being for flours. These results confirm that GF staple foods are more expensive and have lower nutritional value (mainly due to lower iron and protein content) compared to GC foods.


Subject(s)
Celiac Disease , Foods, Specialized , Canada , Diet, Gluten-Free , Food Labeling , Glutens , Manitoba
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