I've also read this and it concerned me because I had a major craving for nuts of all sorts with my last pregnancy.

The research I did was that it's fine to eat peanuts and peanut butter, but to limit it so that your baby doesn't become sensitised to it and develop an allergy after birth. So basically don't pig out on it every day.

I ate alot of cashews and almonds to satisfy my craving but I tell you what that got expensive after a while LOL.