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对多伦多为无家可归者提供慈善餐食项目的营养评估。

Nutritional assessment of charitable meal programmes serving homeless people in Toronto.

作者信息

Tse Carmen, Tarasuk Valerie

机构信息

Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada M5S 3E2.

出版信息

Public Health Nutr. 2008 Dec;11(12):1296-305. doi: 10.1017/S1368980008002577. Epub 2008 Jun 12.

Abstract

OBJECTIVES

To assess the potential nutritional contribution of meals provided in a sample of community programmes for homeless individuals, to determine the effect of food donations on meal quality and to develop food-based guidance for meals that would meet adults' total nutrient needs.

SETTING

Toronto, Canada.

DESIGN

An analysis of weighed meal records from eighteen programmes. The energy and nutrient contents of meals were compared to requirement estimates to assess contribution to total needs, given that homeless people have limited access to nutritious foods. Mixed linear modelling was applied to determine the relationship between the use of food donations and meal quality. The composition of meals that would meet adults' nutrient requirements was determined by constructing simulated meals, drawing on the selection of foods available to programmes.

SAMPLE

In all, seventy meals, sampled from eighteen programmes serving homeless individuals.

RESULTS

On average, the meals contained 2.6 servings of grain products, 1.7 servings of meat and alternatives, 4.1 servings of vegetables and fruits and 0.4 servings of milk products. The energy and nutrient contents of most meals were below adults' average daily requirements. Most meals included both purchased and donated foods; the vitamin C content of meals was positively associated with the percentage of energy from donations. Increasing portion sizes improved the nutrient contribution of meals, but the provision of more milk products and fruits and vegetables was required to meet adults' nutrient requirements.

CONCLUSIONS

The meals assessed were inadequate to meet adults' nutrient requirements. Improving the nutritional quality of meals requires additional resources.

摘要

目的

评估为无家可归者提供的社区项目样本餐食的潜在营养贡献,确定食品捐赠对餐食质量的影响,并制定能满足成年人总营养需求的餐食食物指南。

地点

加拿大多伦多。

设计

对来自18个项目的称重餐食记录进行分析。鉴于无家可归者获取营养食物的机会有限,将餐食的能量和营养成分与需求估计值进行比较,以评估对总需求的贡献。应用混合线性模型来确定食品捐赠的使用与餐食质量之间的关系。通过构建模拟餐食,利用项目可获得的食物选择,确定能满足成年人营养需求的餐食组成。

样本

总共从为无家可归者提供服务的18个项目中抽取了70份餐食。

结果

平均而言,餐食包含2.6份谷物制品、1.7份肉类及替代品、4.1份蔬菜和水果以及0.4份奶制品。大多数餐食的能量和营养成分低于成年人的平均每日需求量。大多数餐食既包含购买的食物也包含捐赠的食物;餐食中的维生素C含量与捐赠能量的百分比呈正相关。增加份量可提高餐食的营养贡献,但需要提供更多的奶制品、水果和蔬菜才能满足成年人的营养需求。

结论

所评估的餐食不足以满足成年人的营养需求。提高餐食的营养质量需要额外的资源。

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