What an impossible coincidence, I have just opened a mini box of celebrations (OH kindly bought as I am feeling down at the moment), and had just decided to have the Snickers first as that is the one I don't really like, and clicked on the first post on this forum as I put it in my mouth and it happens to be about peanuts!!! Coincidence or what?? I would never usually eat peanuts, whether pregnant or not.
Anyway, back to the post. I don't think one tracker bar will really do any damage at all, if you ate one a day then that may be a different story.
I too think there is too much read into all the foods that you can't eat. BUT, I do suffer from food poisoning when pregnant, so in my opinion, if you don't want to get ill, then steer clear. I had a really bad time when pg with dd when I had prawns, with ds1 it was a Big Mac that was the culprit, and sausages this time. So, not always the foods that are suggested, but anything really that may not have been cooked properly.
Sorry this has turned out long.
heather x