Efficacy of a community-based dietary intervention to enhance micronutrient adequacy of high-phytate maize-based diets of rural Malawian children

Public Health Nutrition

Beatrice Mtimuni¹  Fiona Yeudall¹  Rosalind S Gibson¹  Timothy R Cullinan¹ 

关键词: Dietary intervention;    Maize;    Diets;    Phytate;    Zinc;    Bioavailability;   

DOI  :  10.1079/PHN2005744

学科分类：卫生学

来源: Cambridge University Press

【 摘 要 】

ObjectiveTo evaluate the efficacy of a community-based dietary intervention to reduce risk of micronutrient inadequacies in high-phytate maize-based Malawian diets.DesignQuasi-experimental post-test design with a non-equivalent control group.SettingFour villages in Mangochi District, Southern Malawi.ParticipantsHouseholds with children aged 3–7 years in two intervention (n = 200) and two control (n = 81) villages participated in a 6-month intervention employing dietary diversification, changes in food selection patterns, and modifications to food processing to reduce the phytate content of maize-based diets. Baseline comparability between the groups was confirmed via assessment of sociodemographic characteristics, anthropometry, knowledge and practices, morbidity, haemoglobin and hair zinc. After 12 months, knowledge and practices and dietary intakes were assessed by interactive 24-hour recalls, one during the food plenty and a second during the food shortage season. Nutrient adequacy for the two groups was compared via dietary quality indicators and predicted prevalence of inadequate intakes using the probability approach.ResultsIntervention children had diets that were significantly more diverse and of a higher quality than those of controls. Median daily intakes of protein, calcium, zinc (total and available), haem iron, vitamin B12 and animal foods (grams; % of total energy) were higher (P

【 授权许可】

Unknown