I caught a programme about salt in babies food. Apparently 70% of babies consume too much salt. Part of the problem is that big food companies label their food with the sodium content rather than the salt content, this is really dishonest as the actual salt content is 2.5 x as much as the sodium.
Other issues is gravy which contains a lot of salt, its better to use the water from cooking the vegtables to mash the food down rather than the salty gravy.
The other important thing to know is that cows milk contains twice as much salt as breast milk or formula.
The government recommend for babies and toddlers only 1 gram of salt a day.