八岁的小明平时偏食,又爱吃零食,与同龄的小朋友相比,显得明显瘦弱,个儿也偏矮。妈妈带他四处求医,医生说他营养不良,建议他要少吃零食,每天坚持喝牛奶,因为牛奶的营养价值高,特别适合于生长发育的孩子食用,能帮助他们长个。回家后妈妈就给小明订了两份鲜牛奶让他每天早晚都喝一袋。可小明喝了牛奶以后说自己肚子疼、肚子胀,很难受。开始妈妈以 Eight-year-old Xiaoming partial eclipse, but also love to eat snacks, compared with children of the same age, obviously thin, a child too short. Mom took him to seek medical treatment, the doctor said he was malnourished, suggesting that he should eat less snacks, drink milk every day, because of the high nutritional value of milk, especially suitable for growth and development of children eat, can help them grow. After returning home, Mom gave Xiaoming ordered two fresh milk for him to drink a bag every morning and evening. May Xiaoming said after drinking milk stomachache, belly bulge, very uncomfortable. Start mom