1. What foods are rich in calcium? Calcium is one of the nutrients necessary for baby growth and can help bone development and tooth growth. A one-year-old baby needs approximately 700 mg of calcium per day. Here are some foods rich in calcium: 1. Dairy products: Dairy products such as milk, yogurt and cheese are good sources of calcium. However, some children may be lactose intolerant and may choose low-lactose or lactose-free products. 2. Green vegetables: Green vegetables such as rape, mustard, etc. are rich in calcium, and are also rich in nutrients such as vitamin C and folic acid. 3. Seafood: Sea cucumber, kelp, seaweed and other seafood are also good supplements.