It is normal for a baby to crawl at 6 months, generally babies crawl at 7-8 months. The baby can crawl at 6 months, which means that the baby’s motor development is ahead of schedule, and the baby’s growth and development is very good, so it is necessary to timely replenish the various nutrients required for the baby’s body development. 6 months old baby has already added supplementary food, you can properly eat more food rich in protein, calcium and vitamin D, such as fish, shrimp, minced meat, carrots and so on, The baby should be taken outdoors to the sun every day to help absorb calcium and promote the development of the baby’s bones.