The average weight of a newborn at birth is 3kg, but a weight of 2.5kg at birth is normal; at 5 months the weight reaches about 6kg; at 1 year the weight averages 9kg; later the law of weight gain is: weight (kg) = age x 2 + 8. However, there are individual differences in babies and if the weight deviates from the average standard, it is best to consult your doctor for a scientific view of your baby’s health. If your baby really does not reach the minimum of the standard weight, do not panic. Carefully find the crux of the problem, in order to target the problem. 1, pure breastfeeding After one year old, the nutrition of breast milk can no longer meet the baby’s physical development needs, pure breast milk will affect the baby’s health. So do a good job of breast milk, complementary foods and other foods in a reasonable ratio. 2.Increasing activity Babies are slowly walking, their activity is increasing and they need more food to replenish their strength, sometimes they don’t get enough nutrition because of parents’ negligence. So plan to add enough calories to the food. 3, irregular diet Baby needs regular feeding, wait until hungry and then feed, baby’s appetite has been hurt; sometimes the diet is delayed too long, but also the baby’s appetite will not know. So according to the actual situation, as far as possible every day at the same time to eat. 4, improper food selection The baby’s food does not have enough nutrition and energy to help him develop properly. For example, low-fat foods; low-calorie foods (such as artificial desserts); and low-nutrient foods (such as junk foods, overly processed foods). For this reason it is important to pay attention to a balanced mix of calories and nutrients in food. In addition, it is recommended to cook food more often with water as the medium such as boiling, steaming and stewing. 5. Too much time is rushed Some babies are not ready to eat on their own, and mastering eating skills while satisfying their appetite can be a challenge for them. Therefore, parents should arrange enough time for the baby to eat as much as possible. If you rush, the baby will not think for himself, even if he is still hungry, he will leave the table. 6, snacks before meals more snacks before eating will make the baby’s small appetite is not in the mood to taste the food again, well adjusted snacks added time: between breakfast and lunch, between lunch and dinner, before going to bed. 7, more water intake Some babies drink too much liquid (milk, juice, water), there is no place for more solid food in the little tummy, nutrition can not keep up, there is a natural difference in weight. 8, suppressing bad emotions before and after eating, if something unpleasant happens, such as the baby game is not happy, or by parents reproach, or dining environment is not pleasant will affect his small appetite. 9, bad habits Some babies are accustomed to watching TV while eating, or playing while eating, always ask parents to chase around to feed, so not only eat less rice, but also not conducive to digestion and absorption. Therefore, the environment for eating must be quiet, as far as possible to avoid external disturbances, to facilitate the baby to eat at ease. 10, disease trouble Many physical diseases can cause babies to be underweight, such as ear infections, asthma, digestive diseases, metabolic disorders, iron and zinc deficiency, parasitic diseases, endocrine system diseases, etc. Babies will show hunger, or eat a lot, but still lose weight and are weak. Also there are medications – such as antibiotics – that can impair your baby’s appetite. Talk to your doctor about these problems to find the right treatment and protect your baby’s appetite.