A one-and-a-half year old baby’s weight of 25 pounds is generally normal. The weight of one and a half year old babies is affected by birth weight, acquired diet, disease and other factors, there are individual differences. The standard weight of a one-and-a-half year old baby is around 8.9kg-13.5kg, so a baby’s weight of 25 pounds is relatively normal and there is no need to be overly nervous. If a one and a half year old baby weight is low, may be related to malnutrition, it is recommended to pay more attention to the baby’s diet, you can usually add appropriate complementary foods to the baby, eat less too greasy spicy stimulating food, but also need to take the baby for more sports. If a one and a half year old baby weight is heavy, you need to control the diet appropriately. Usually need to maintain nutritional balance, avoid partiality picky eating.