@Bao Xiulan asked: Hello, Dr. Bao, my boy has been taking d3 drops for more than four months. When I went to have a prophylactic injection, people said that I could not only take this, but must make up a, right?
Answer expert Bao Xiulan (Gold medal expert of Sina Maternal and Infant Research Institute, chief pediatrician of Peking Union Medical College Hospital): The American Academy of Pediatrics and the Chinese Academy of Pediatrics have specified that vitamin D should be supplemented at 400 units per day, so D must be supplemented. Vitamin A is not necessary.
