First, because the baby's long-term malnutrition will affect the baby's height and weight, it will make the baby's height, weight and head circumference lag behind the baby of the same age.

Second, it is because the baby's malnutrition has not been improved in time for a long time, and the dietary nutrition has not been fully supplied, which is easy to aggravate malnutrition, leading to a decrease in the division rate of brain cells, resulting in the baby's neurological dysfunction, language development retardation, slow response and brain deficiency.

Third, the baby's long-term malnutrition is prone to the lack of trace elements and vitamins, which will affect his own immunity, resulting in many diseases, such as frequent colds, angular keratitis, keratitis, constipation, bad breath and so on.