Thanks for that idea about the Parent's Jury card MR - I have never heard of that site before. I just downloaded the card. They say that you should be looking for less than 120mg per 100g.

There was a discussion about this a while ago with regard to vegemite. Find it here.

The salt issue is something I am really concerned about.

Looking online I found info that outlined the RDI of sodium for infants and it is not much at all:
0-6 months = 120mg/day
7-12 months = 200mg/day
1-3 yrs = 300mg/day

with the tolerable upper limits recommended
0-12 months n/a
1-3 yrs = 800mg

n/a due to the fact that there have been no studies done on the high effects of sodium on babies (prob not an ethical study to do!)

If you check out the sodium levels on foods you notice how quickly we can get a baby to 200mg.... pretty bad really.