Sangalli Caroline Nicola, Rauber Fernanda, Vitolo Márcia Regina
1Graduate Program in Health Sciences,Universidade Federal de Ciencias da Saude de Porto Alegre,245 Sarmento Leite,Porto Alegre,90050-170,Brazil.
2Nutrition Research Group (NUPEN),Universidade Federal de Ciencias da Saude de Porto Alegre,245 Sarmento Leite,Porto Alegre,90050-170,Brazil.
Br J Nutr. 2016 Sep;116(5):890-6. doi: 10.1017/S0007114516002695. Epub 2016 Jul 25.
In Brazil, children's eating patterns have been characterised by an increased consumption of ultra-processed foods that are fortified. Our aims were to (1) estimate the prevalence of inadequate micronutrient intake among children from low-income families and (2) to assess micronutrient intake from fortified foods. We carried out a cross-sectional study from a randomised field trial conducted at healthcare centres in Porto Alegre, Brazil, with 446 mother-child pairs, with the children aged 2-3 years. Dietary data were assessed using two 24-h recalls. The prevalence of inadequacy for six micronutrients was estimated using the proportion of individuals with intakes below the estimated average requirement (EAR). Micronutrient intakes from fortified foods were evaluated using EAR and upper tolerable level (UL). Healthy foods consumption was below the recommendations, except for beans, and 88·1 % of the children consumed ultra-processed foods. A low prevalence of inadequate micronutrient intake was observed for Fe (1·2 %), vitamin C (4·7 %), vitamin A (5·2 %), Ca (11·4 %) and folate (15·2 %). None of the children had intakes less than the EAR for Zn. Fortified foods contributed between 11·3 and 38·3 % to micronutrient intakes, and 43·0 % of the children met the EAR for Fe, 13·9 % for vitamin C and 12·3 % for Zn using fortified foods only. In addition, 4·0 % of the children exceeded the UL for vitamin A, 3·1 % for Zn, 1·1 % for folic acid and 0·2 % for Fe. These results highlight a low prevalence of inadequate micronutrient intakes among children and suggest that such a group could be at risk of excessive micronutrient intakes provided by ultra-processed foods.
在巴西,儿童的饮食模式表现为强化超加工食品的消费量增加。我们的目标是:(1)估计低收入家庭儿童微量营养素摄入不足的患病率;(2)评估强化食品中的微量营养素摄入量。我们在巴西阿雷格里港的医疗中心进行了一项随机现场试验的横断面研究,涉及446对母婴,儿童年龄在2至3岁之间。使用两次24小时膳食回顾来评估饮食数据。使用摄入量低于估计平均需求量(EAR)的个体比例来估计六种微量营养素摄入不足的患病率。使用EAR和可耐受最高摄入量(UL)来评估强化食品中的微量营养素摄入量。除豆类外,健康食品的消费量低于建议量,88.1%的儿童食用超加工食品。观察到铁(1.2%)、维生素C(4.7%)、维生素A(5.2%)、钙(11.4%)和叶酸(15.2%)微量营养素摄入不足的患病率较低。没有儿童锌的摄入量低于EAR。强化食品对微量营养素摄入量的贡献在11.3%至38.3%之间,仅使用强化食品时,43.0%的儿童铁摄入量达到EAR,13.9%的儿童维生素C摄入量达到EAR,12.3%的儿童锌摄入量达到EAR。此外,4.0%的儿童维生素A摄入量超过UL,3.1%的儿童锌摄入量超过UL,1.1%的儿童叶酸摄入量超过UL,0.2%的儿童铁摄入量超过UL。这些结果凸显了儿童微量营养素摄入不足的患病率较低,并表明这类儿童可能面临超加工食品提供过量微量营养素的风险。