Babies can eat salt only after more than 6 months, because salt contains a lot of sodium, and sodium in the body is mostly metabolized through the kidneys, a small part can be excreted through sweat, but if the baby is younger, the kidneys and other body organs have not developed soundly, can not handle the intake of salt into the body, sodium can not be excreted, will cause great pressure on the baby’s kidneys, serious and even So it is best for babies to eat a small amount of salt after 6 months of age. However, there is no need to deliberately add salt to your baby’s complementary food, because 4-6 months old babies are allowed to eat complementary food, and the complementary food your baby eats will contain salt. For younger babies, it is important to keep the diet as light as possible and not to eat more than 2g of salt per day.