论文部分内容阅读
钙铁锌等微量元素的摄取量不足,影响着人民的身体健康。从不同人群的分类情况看,我国儿童缺钙铁锌现象最为突出。钙铁锌作为人体必需的元素,对儿童的生长发育及智力发展十分重要;从我国第三次营养调查来看,儿童缺钙或钙营养不足占50%,儿童缺铁或铁营养不足占45%,儿童缺锌或锌营养不足占60%。儿童体内缺乏钙铁锌微量元素会引起多种疾病。缺钙就会发生软骨病及出牙迟,牙齿稀松、鸡胸、身体矮小、“X”形腿、畸形等儿童佝偻病症状。缺铁使细胞色素和含铁酶活性减弱,致使供氧不足,使氧还原及能量代谢紊乱,免疫功能下降;导致贫血症。缺锌表现为生长发育迟缓,智力下降,精神萎靡,厌食等,严重时会造成缺锌性侏儒。
Calcium, iron and zinc and other trace elements in the intake is insufficient, affecting the people’s health. Judging from the classification of different groups of people, the iron deficiency and zinc deficiency are the most prominent in our country. Calcium, iron and zinc as essential elements of the human body, is very important for the growth and development of children and intellectual development; from the third nutrition survey in China, children lack calcium or calcium nutrition accounted for 50%, children iron deficiency or iron nutrition accounted for 45% %, Children lack of zinc or zinc nutrition accounted for 60%. Children lack of calcium iron zinc trace elements can cause a variety of diseases. Calcium deficiency and cartilage will occur late teeth, teeth slender, chicken breast, short body, “X ” shaped legs, deformities and other symptoms of rickets in children. Iron deficiency weakens the activity of cytochromes and ferrihydrases, resulting in insufficient oxygen supply, oxygen reduction and energy metabolism disorders, decreased immune function; resulting in anemia. Zinc deficiency is manifested as growth retardation, mental decline, apathetic, anorexia, etc., can cause zinc deficiency dwarf serious.