I guess we have gone off the original posters topic which is really about the IGF 1 as relates to hemorrhagic strokes. I am still interested in seeing something expert posted on that, but to answer this question directed to me - and I am not expert on any of this, but here goes with a few valid type research links on the salt issue at the end
Personally, I do not add salt to my McD MWL foods, with the exception of some low sodium gluten free soy sauce - which is not really low in sodium by these standards.
You do need some salt/iodine. Correct?
I have been using the cronometer to plot out my daily menus. For some reason, that Jeff could easily explain, it calls my daily sodium need out at 626.5 mg, whereas Jeff has put it at about 1400 and Dr. McD uses I think 1600 mg.
On a typical day I will exceed the cronometer limit with out adding
any salt to my food, but won't get above Dr. McDs limit (except on days where I used prepared salsa - which is really high in sodium, though I buy the least amount I can in this kind of food). But things like celery in my salad will have lots, as do other typical foods. Even my Eden beans low sodium have seaweed in them, but at a hugely lower level then the cronometer shows for other canned beans.
I don't know if I am doing this correctly - I have relied on the chronometer - but from what I can see using it, there is no reason for me to add any salt at the table to my food. So, I am off to do more research.
Here are two references that make me think that Dr. McD and Jeff N have given us the right levels for maximum salt intake and that getting your salt from food is sufficient and a few limited shakes are OK up to their recommendations. As for the IGF 1 stuff the references are all over the place on that and it looks like it is related to increased cancers ( particularly prostate).
Here is Dr. Fuhrman on youtube discussing the dangers of salt.http://www.youtube.com/watch?v=juIfyucDSNQ
And this is from the Center for Science in the Public Interest: it is very comprehensive in dealing with the subject of salt intake and covers all current recommendations for levels from a variety of sources. I personally like the lowest range one, which has the added benefit of age adjustments.
"Salt: The Forgotten Killer"http://cspinet.org/salt/saltreport.pdf