The most important thing to determine if a baby is oversupplemented with calcium is to clarify whether the baby is deficient in calcium and why. If the nutrition is balanced and the growth and development is normal, additional calcium supplementation is too much calcium. You cannot wait until after the so-called early bone age, increased urinary calcium measurement and urinary stones to judge the calcium oversupply based on these. Babies may need more calcium for faster growth and development, and they need to increase their calcium intake in order to accumulate more bone spikes when they grow up and avoid excessive and rapid bone loss when they get older. However, if the diet is good and there are no calcium and vitamin D deficiency diseases, such as congenital diseases or gastrointestinal diseases that affect the absorption of calcium and phosphorus, such as frequent sun exposure and a love of exercise, babies generally do not need additional supplementation. If there is no clear reason for additional calcium supplementation, it is considered to be all so-called calcium oversupplementation and cannot wait until the baby develops physical damage before the so-called assessment is made. Therefore, it is important not to blindly supplement calcium, but to reasonably assess whether your baby is deficient in calcium and whether there is a need for dietary adjustments under the guidance of your doctor after you encounter the problem.