van den Briel Tina, Cheung Edith, Zewari Jamshid, Khan Rose
Food Nutr Bull. 2007 Sep;28(3):353-64. doi: 10.1177/156482650702800312.
Deficiencies in micronutrients such as iron, vitamin A, and iodine affect billions of people worldwide, causing death, disease, and disability. The UN World Food Programme (WFP) has long been recognised for its ability to deliver food to some of the most remote locations, under the toughest conditions: refugees in border camps, populations cut off by conflict, extremely poor and marginalised people like ethnic minorities, orphans, and widows. Relatively little, however, is known about its efforts to ensure that the food it delivers not only provides enough calories for immediate survival but also provides the vitamins and minerals needed for healthy growth and development. Much of the food delivered by WFP is fortified with iron, vitamin A, and other micronutrients before being shipped. But there are several reasons to mill and fortify food as close to the beneficiaries as possible. For instance, milling and fortifying food locally helps to overcome the problems of the short shelf-life of whole fortified maizemeal. It also enhances the nutritional value of locally procured cereals. And it can foster demand for fortified foods among local consumers beyond WFP beneficiaries, thus nurturing an industry with potentially significant benefits for the health of entire communities. This paper outlines three approaches by WFP to fortifying cereals in Afghanistan, Angola, and Zambia. It examines the challenges faced and the outcomes achieved in an effort to share this knowledge with others dedicated to improving the nutritional status of poor and food-insecure people. In Afghanistan, attempts to mill and fortify wheat flour using small-scale chakki mills were successful but much larger-scale efforts would be needed to promote demand and reach the level of consumption required to address serious iron deficiencies across the country. In Angola, maize has been fortified to combat the persistent occurrence of pellagra, a micronutrient deficiency disease found among people whose diets are dominated by maize. By providing fortification equipment to a commercial mill at the port of Lobito and using a vitamin and mineral pre-mix provided by UNICEF, this project has overcome many of the difficulties common in countries emerging from conflict to provide monthly fortified maize rations to some 115,000 beneficiaries. In Zambia, iron deficiency anaemia was a serious problem among camp-restricted refugees. WFP and its partners imported, installed, and trained workers in the use of two containerized milling and fortification units (MFUs), halved iron-deficiency anaemia, and reduced vitamin A deficiency among camp residents. In addition, WFP dramatically reduced waiting times for refugees who used to have their whole grain maize rations milled at small local facilities with insufficient milling capacity. The context and scale of each of the three case-studies described in this paper was different, but the lessons learned are comparable. All projects were succesful in their own right, but also required a considerable amount of staff time and supervision as well as external technical expertise, limiting the potential for scaling up within the WFP operational context. In order to expand and sustain the provision of fortified cereal flour to WFP beneficiaries and beyond, getting the private milling sector as well as governments on board would be crucial. Where this is not possible, such as in very isolated, difficult to reach locations, strong, specialized partners are a prerequisite, but these are few in number. Alternatively, in such contexts or in situations where the need is urgent and cannot be met through local flour fortification in the short term, or through local purchases of fresh foods, other approaches to improve the diet, such as the use of multimicronutrient formulations, packed for individual or household use, may be more appropriate.
铁、维生素A和碘等微量营养素缺乏影响着全球数十亿人,导致死亡、疾病和残疾。联合国世界粮食计划署(WFP)长期以来因其在最艰苦条件下向一些最偏远地区运送粮食的能力而受到认可:边境营地的难民、因冲突而与世隔绝的人群、像少数民族、孤儿和寡妇这样极端贫困和边缘化的人群。然而,对于其确保所运送的粮食不仅能提供足够热量以维持即时生存,还能提供健康成长和发育所需的维生素和矿物质的努力,人们了解得相对较少。世界粮食计划署运送的许多粮食在装运前都添加了铁、维生素A和其他微量营养素。但有几个理由要尽可能在靠近受益者的地方对粮食进行碾磨和强化。例如,在当地对粮食进行碾磨和强化有助于克服全强化玉米粉保质期短的问题。这也提高了当地采购谷物的营养价值。而且这可以在世界粮食计划署受益者之外的当地消费者中培养对强化食品的需求,从而培育一个对整个社区健康可能有重大益处的产业。本文概述了世界粮食计划署在阿富汗、安哥拉和赞比亚强化谷物的三种方法。它审视了所面临的挑战和取得的成果,以便与其他致力于改善贫困和粮食不安全人群营养状况的人分享这些知识。在阿富汗,使用小型 chakki 磨坊碾磨和强化小麦粉的尝试取得了成功,但需要更大规模的努力来促进需求并达到解决全国严重缺铁问题所需的消费水平。在安哥拉,玉米已进行强化以应对糙皮病的持续发生,糙皮病是一种在以玉米为主食的人群中发现的微量营养素缺乏疾病。通过向洛比托港的一家商业磨坊提供强化设备并使用联合国儿童基金会提供的维生素和矿物质预混料,该项目克服了冲突后国家常见的许多困难,为约115,000名受益者提供每月强化玉米口粮。在赞比亚,缺铁性贫血在营地受限的难民中是一个严重问题。世界粮食计划署及其合作伙伴进口、安装并培训工人使用两个集装箱式碾磨和强化单元(MFU),使缺铁性贫血减半,并减少了营地居民中的维生素A缺乏情况。此外,世界粮食计划署大幅缩短了难民的等待时间,这些难民过去常常在当地小型设施碾磨全麦玉米口粮,而这些设施碾磨能力不足。本文所述的三个案例研究的背景和规模各不相同,但吸取的经验教训具有可比性。所有项目本身都取得了成功,但也需要大量工作人员时间和监督以及外部技术专长,这限制了在世界粮食计划署业务范围内扩大规模的潜力。为了扩大并持续向世界粮食计划署受益者及其他人群提供强化谷物面粉,让私营碾磨行业以及政府参与进来至关重要。在无法做到这一点的地方,比如在非常偏远、难以到达的地区,强大、专业的合作伙伴是先决条件,但这样的合作伙伴数量很少。或者,在这种情况下,或者在需求紧迫且短期内无法通过当地面粉强化或当地购买新鲜食品来满足的情况下,其他改善饮食的方法,比如使用为个人或家庭包装的多种微量营养素配方,可能更合适。