Abstract: In this study, nutritional data on the four major kinds of infant products for special medical purposes produced in China and some other countries were collected and compared for differences in the three calorigenic nutrients, vitamins, minerals, and mandatory or optional nutrients. Moreover, principal component analysis (PCA) was carried out on these data. The results showed that the domestic brands of amino acid-based or hypoallergenic infant formula were significantly richer in fat, vitamin K, pantothenic acid, and taurine than the imported brands (P < 0.05), but had a significantly lower content of folic acid (P < 0.05). The contents of fat, manganese, taurine, and carnitine in the domestic brands of partially hydrolyzed milk infant formula were significantly higher than those in the imported brands (P < 0.05). The contents of iron, vitamin D, and vitamin B2 in the domestic brands of lactose-free or low-lactose infant formula were significantly higher than those in the imported brands (P < 0.05). Notwithstanding, no significant differences in any of the tested nutrients were observed between the domestic and imported brands of infant formula for low birth weight infants and preterm infants. The results of PCA showed that the contents of manganese, VB5 and VB3 made the greatest contribution to the nutritional difference between the domestic and imported brands of amino acid-based or hypoallergenic infant formula, the contents of VB6, VB2, VB5 and VB3 made the greatest contribution to the nutritional difference between the domestic and imported brands of partially hydrolyzed milk infant formula, while the contents of VB5 and VB3 made the greatest contribution to the nutritional difference between the domestic and imported brands of lactose-free or low-lactose infant formula and of infant formula for low birth weight infants and preterm infants.

Key words: infant formula for special medical purposes, comparison of Chinese and imported brands, statistical analysis, nutrient comparison, principal component analysis

摘要： 收集国内外主要特殊医学用途婴儿配方食品营养数据，分别对国内外4 类特殊医学用途婴儿配方食品中三大产能营养素、维生素、矿物质以及在标准中要求强制添加或选择性添加的其他营养元素含量进行比较分析，并对国内外4 类特殊医学用途婴儿配方食品进行主成分分析。结果表明：氨基酸配方或乳蛋白深度水解配方中，国内品牌脂肪、VK、泛酸、牛磺酸含量显著大于国外品牌（P＜0.05），但国内品牌叶酸含量显著低于国外品牌（P＜0.05）；乳蛋白部分水解配方中，国内品牌脂肪、锰、牛磺酸、肉碱含量显著高于国外品牌（P＜0.05）；

关键词: 特殊医学用途婴儿配方食品, 国内外比较, 统计分析, 营养成分比较, 主成分分析