Nutritional Intervention Research Unit, South African Medical Research Council, Tygerberg, South Africa.
Matern Child Nutr. 2013 Jul;9(3):409-24. doi: 10.1111/j.1740-8709.2011.00372.x. Epub 2011 Dec 20.
Availability and consumption of fruits and vegetables were assessed in peri-urban households in KwaZulu-Natal Province, South Africa. Caregivers of 400 randomly selected grade 6 and 7 learners were interviewed using a questionnaire that included unquantified food frequency questions. Using a repeated 24-h dietary recall, dietary intake was quantified for learners, caregivers and 2- to 5-year-old children in the household. Usual household fruit and vegetable consumption was expressed over three Living Standard Measure (LSM) categories. Average per capita intake of fruit and/or vegetables was 99 g for 2- to 5-year-old children and 124 g for caregivers. For consumers, fruits and/or vegetables contributed towards total dietary intake of fibre (16-21%), calcium (13-21%), vitamin A (27-31%) and vitamin C (47-62%). For households not consuming fruits (n = 297) and vegetables (n = 178) daily, cost was the major constraint (≥75%). Of all households, 52% had fruit trees and 25% had a vegetable garden. Animals destroying vegetables was the major constraint to 59% of vegetable growers. Household consumption of fruits and vegetables increased over the LSM categories. Caregivers in the higher LSM group more likely used printed material for information on healthy eating, had fruit trees, were confident about vegetable gardening and sold some of their produce. To enable peri-urban populations of low socio-economic status to consume more frequently a bigger variety of fruits and vegetables, the cost of purchasing these food items needs to be addressed by government and business sector. Households should further receive support to overcome constraints which hamper the success of home gardens.
本研究评估了南非夸祖鲁-纳塔尔省城乡结合部家庭的水果和蔬菜供应和消费情况。研究人员采用包含不定量食物频率问卷的问卷,对随机选择的 400 名六年级和七年级学生的照护者进行了访谈。研究人员通过重复 24 小时膳食回忆法,对学生、照护者和家庭中 2 至 5 岁的儿童的饮食摄入量进行了量化。通常情况下,家庭水果和蔬菜的消耗量按三个生活水平衡量(LSM)类别表示。2 至 5 岁儿童的人均水果和/或蔬菜摄入量为 99 克,照护者为 124 克。对于消费者而言,水果和/或蔬菜可提供膳食纤维(16-21%)、钙(13-21%)、维生素 A(27-31%)和维生素 C(47-62%)的饮食摄入量。对于每天不食用水果(n = 297)和蔬菜(n = 178)的家庭来说,费用是主要的限制因素(≥75%)。在所有家庭中,52%有果树,25%有菜园。动物破坏蔬菜是 59%的蔬菜种植者的主要限制因素。家庭对水果和蔬菜的消费随着 LSM 类别的增加而增加。在较高 LSM 组的照护者更可能使用印刷材料获取健康饮食信息,拥有果树,对蔬菜种植有信心,并出售部分农产品。为了使社会经济地位较低的城乡结合部人口更频繁地消费更多种类的水果和蔬菜,政府和企业部门需要解决购买这些食物的成本问题。家庭还需要进一步获得支持,以克服阻碍家庭花园成功的各种限制因素。