Bwibo Nimrod O, Neumann Charlotte G
Department of Pediatrics, Faculty of Medicine, University of Nairobi, Nairobi, Kenya.
J Nutr. 2003 Nov;133(11 Suppl 2):3936S-3940S. doi: 10.1093/jn/133.11.3936S.
Food intake and dietary patterns in Kenyan households have been studied since the 1920s. Reports on breastfeeding, nutrient intake, micronutrient deficiencies and the impacts of malaria and intestinal parasites on nutritional status are reviewed. Diets are mainly cereal-based, with tubers and a variety of vegetables and fruits when available. White maize, sorghum and millet are high in phytate and fiber, which inhibit the absorption of micronutrients such as zinc and iron. Communities growing cash crops have little land for food crops. Although households may own cattle, goats and poultry, commonly these are not consumed. Adults in nomadic communities consume more meat than nonpastoralists. Lakeside and oceanside communities do not consume adequate amounts of fish. Poor households have a limited capacity to grow and purchase food, therefore they have more nutrient deficiencies. Early weaning to cereal porridge deprives the infant of protein and other nutrients from human milk. Other milk is consumed only in small amounts in sweetened tea. Older children eat adult diets, which are extremely bulky and hard to digest. Anemia is mainly due to iron deficiency, malaria and intestinal parasites. In general, Kenyan children have inadequate intakes of energy, fat and micronutrients such as calcium, zinc, iron, riboflavin and vitamins A and B-12. The multiple micronutrient deficiencies may contribute to early onset of stunting and poor child development, whereas lack of calcium together with vitamin D deficiency are responsible for the resurgence of rickets. There is an urgent need to increase the intake of animal source foods by Kenyan children.
自20世纪20年代以来,人们一直在研究肯尼亚家庭的食物摄入量和饮食模式。本文回顾了有关母乳喂养、营养摄入、微量营养素缺乏以及疟疾和肠道寄生虫对营养状况影响的报告。饮食主要以谷物为主,有块茎类蔬菜以及各种蔬菜和水果(若有供应)。白玉米、高粱和小米富含植酸和纤维,会抑制锌和铁等微量营养素的吸收。种植经济作物的社区用于种植粮食作物的土地很少。尽管家庭可能拥有牛、山羊和家禽,但通常不会食用这些牲畜。游牧社区的成年人比非牧民食用更多的肉类。湖边和海边社区的鱼类消费量不足。贫困家庭种植和购买食物的能力有限,因此他们更容易出现营养缺乏问题。过早断奶改喂谷物粥会使婴儿无法从母乳中获取蛋白质和其他营养物质。其他奶类仅少量用于制作甜茶。大龄儿童食用成人饮食,这种饮食量极大且难以消化。贫血主要是由缺铁、疟疾和肠道寄生虫引起的。总体而言,肯尼亚儿童的能量、脂肪以及钙、锌、铁、核黄素、维生素A和维生素B - 12等微量营养素摄入量不足。多种微量营养素缺乏可能导致发育迟缓提前出现和儿童发育不良,而钙缺乏与维生素D缺乏共同导致佝偻病再度出现。肯尼亚儿童迫切需要增加动物源性食物的摄入量。