幼儿长期缺钙,牙齿、骨骼和生长发育会受到严重影响,易患佝偻病,并可能导致少年时期生长受阻。幼儿长期缺锌,智力、生长发育及视觉、味觉等生理机能受到影响。幼儿缺铁除可引起贫血外,还会使机体多种代谢异常,影响睡眠,损害神经、消化器官、肌肉和免疫系统的功能,阻碍生长发育。经研究分析还发现:幼儿缺钙、缺锌、缺铁性贫血与幼儿摄入碳水化合物不够(尤其摄入发酵食物不多)密切相关。因发酵食物如馒头、面包、蛋糕有利于生命元素钙、锌、铁的吸收。因谷类食物中含有一种酶——植酸酶,在发酵过程中,此酶活性增强,可将谷物及其他食物中的植酸分解成肌醇和磷酸,从而阻止植酸与钙、锌、铁等生命元素形成不易被人体吸收的植酸盐沉淀,还阻止钙、植酸与锌元素形成的不溶性锌——钙——植酸复合物,故幼儿多摄入发酵食品,就 Long-term calcium deficiency in children, teeth, bones and growth and development will be severely affected, susceptible to rickets, and may lead to growth retardation in adolescence. Long-term zinc deficiency in children, intelligence, growth and development, and vision, taste and other physiological functions are affected. In addition to iron deficiency in young children can cause anemia, but also make the body a variety of metabolic disorders, affecting sleep, damage to nerves, digestive organs, muscles and immune system function, hinder growth and development. After research and analysis also found that: children calcium deficiency, zinc deficiency, iron deficiency anemia and carbohydrate intake of young children is not enough (especially the intake of fermented food is not much) are closely related. Due to fermented foods such as bread, bread, cake is conducive to the life elements of calcium, zinc, iron absorption. Because cereal contains an enzyme - phytase, during fermentation, this enzyme activity can enhance the decomposition of phytic acid in cereals and other foods into inositol and phosphoric acid, thereby preventing phytic acid and calcium, zinc, iron Such as the formation of life-form elements are not easy to be absorbed by the body of phytate precipitation, but also to prevent calcium, phytic acid and zinc formed insoluble zinc-calcium - phytic acid complex, so many children intake of fermented foods, on