I have tow SW  CAH boys.  We gave sodium supplement in their formula until one year of age and then we just relied on the table food.  I do not add salt per se,  but I do like salt so I do add some salt to my cooking.  My kids do not seem to crave salt either.  My little one is more of a salt waster than my older son.  He took 4 Florinef when he was a baby,  now  1 1/2 per day,  where my older son takes 1/2  right now.

Good luck