Home made is best.

Babies need their food salted.

Adults(say a 60 kg woman) need 2 teaspoons of salt a day. So a 10 kg infant needs 1/3 of a teaspoon a day.

If babies don’t get enough salt they can get constipated and have trouble sleeping.

Also they will crave salty foods like cheese, tinned fish, potato chips and crackers.