RE: To those of you whose DC love olives...
I try to limit DS too. The salt as you said isn't the greatest and there's something else (can't remember what now) in olives that isn't too hot in huge amounts either. My DS is not a big eater at all though so it is nice to see him excited about eating anything, and the fat in olives is a nice bonus.
I'd think 5 is perfectly fine though :) I don't know if there's an official cap on olive consumption ;) but that sounds like about what we do. I'm curious what the other mamas of olive-eaters will recommend :)
Mama to DS-2004
DD-2006
and a new addition-ds born march 2010