Many parents are always concerned about how many kilograms a 4-year-old child should weigh. However, weight is not necessarily the only factor, so parents do not need to be too concerned about their child's weight, but should find ways to help their child develop comprehensively in both physical and mental health.

Obesity in children is quite common in large cities. The causes are often a lack of physical activity and excessive nutrition, which negatively impact the child's health as they grow up. Therefore, parents need to understand their child's energy needs as well as the metabolic process in children during their growth stage to nourish them appropriately.