Babies over nine months can't eat salt. It is not recommended to eat salt before the baby is one year old. Eating salt increases the burden on the baby's kidneys. Dr. Cui Yutao suggested that it is best not to eat salt before the baby is three years old, and it must not be eaten within one year old. In addition to increasing the burden on the kidneys, it will also destroy the baby's taste buds. So it is good to give the baby raw food within one year old.