Jamieson Jennifer A, Gougeon Laura
a Department of Human Nutrition, St. Francis Xavier University, Antigonish, NS.
Can J Diet Pract Res. 2017 Dec 1;78(4):192-196. doi: 10.3148/cjdpr-2017-020. Epub 2017 Aug 11.
We investigated the price difference between gluten-free (GF) and gluten-containing (GC) foods available in rural Maritime stores. GF foods and comparable GC items were sampled through random visits to 21 grocery stores in nonurban areas of Nova Scotia, New Brunswick, and Prince Edward Island, Canada. Wilcoxon rank tests were conducted on price per 100 g of product, and on the price relative to iron content; 2226 GF foods (27.2% staple items, defined as breads, cereals, flours, and pastas) and 1625 GC foods were sampled, with an average ± SD of 66 ± 2.7 GF items per store in rural areas and 331 ± 12 in towns. The median price of GF items ($1.76/100 g) was more expensive than GC counterparts ($1.05/100 g) and iron density was approximately 50% less. GF staple foods were priced 5% higher in rural stores than in town stores. Although the variety of GF products available to consumers has improved, higher cost and lower nutrient density remain issues in nonurban Maritime regions. Dietitians working in nonurban areas should consider the relative high price, difficult access, and low iron density of key GF items, and work together with clients to find alternatives and enhance their food literacy.
我们调查了加拿大沿海省份农村商店中无麸质（GF）食品和含麸质（GC）食品之间的价格差异。通过随机走访加拿大新斯科舍省、新不伦瑞克省和爱德华王子岛非城市地区的21家杂货店，对GF食品和类似的GC食品进行了采样。对每100克产品的价格以及相对于铁含量的价格进行了Wilcoxon秩和检验；共采样了2226种GF食品（27.2%为主食类，定义为面包、谷物、面粉和意大利面）和1625种GC食品，农村地区每家商店GF食品的平均数量±标准差为66±2.7种，城镇地区为331±12种。GF食品的中位数价格（1.76美元/100克）高于GC食品（1.05美元/100克），且铁密度约低50%。农村商店中GF主食的价格比城镇商店高5%。尽管消费者可获得的GF产品种类有所改善，但在沿海省份的非城市地区，成本较高和营养密度较低仍是问题。在非城市地区工作的营养师应考虑关键GF食品相对较高的价格、获取困难和低铁密度，并与客户共同努力寻找替代方案，提高他们的食品知识水平。
