The effects of taking too much vitamin D on babies should be decided on a case-by-case basis. Occasionally take more than once usually have no obvious effect, usually do not need special treatment; if a long time to take vitamin D, easy to lead to vitamin D overdose or toxicity, affecting the bones as well as the normal physiological function of the kidneys. 1. No obvious effect: Occasionally take more than one vitamin D, the drug will be gradually discharged through the baby’s metabolism, generally will not bring obvious effects to the baby, do not need to do any special treatment, you can drink more warm boiled water, to promote metabolism and excretion can be. 2. Vitamin D overdose or poisoning: baby long time to take vitamin D, the body will be due to excessive intake of vitamin D and toxicity symptoms, the specific performance of bone, muscle and nervous system dysfunction is mainly, but also may affect the renal excretion function. It is recommended that the baby supplement vitamin D, must strictly follow the doctor’s instructions, according to the results of laboratory tests for reasonable supplementation, to avoid blindly overdose lead to serious consequences, the baby’s health is a threat.