1. Why do babies need calcium supplements? Calcium is one of the essential nutrients for the human body, especially for infants and young children. Babies need a large amount of calcium to maintain bone health during growth and development. It also plays an important role in the development of teeth, nerves, muscles, etc. If the baby lacks calcium, it will lead to skeletal dysplasia, easy fractures, difficulty in orthodontic treatment and other problems. 2. Which foods are rich in calcium? 1. Dairy products: breast milk or