近来不少独生子女家长常为孩子不想吃饭,身体瘦弱,常患感冒而发愁。据国家有关部门对全国20多个省市5万余名儿童进行微量元素检查,发现60%是缺锌所致。轻度缺锌表现为毛发色黄、干燥、稀疏,厌食,易患感冒。重度缺锌除有上述特征外,还表现为生长发育不良,智能低下,身高体重低于标准,第二性征发育延迟。做父母亲的常 Recently, many only-child parents often do not want to eat for children, the body is thin and often catch a cold and worry. According to the national authorities on the more than 20 provinces and cities nationwide more than 50,000 children were examined by trace elements and found that 60% is due to zinc deficiency. Mild zinc deficiency manifested as hair color yellow, dry, sparse, anorexia, susceptible to cold. Severe zinc deficiency in addition to the above characteristics, but also showed poor growth and development, mental retardation, height and weight below the standard, delayed development of secondary sexual characteristics. Parents often