This is probably a silly question, but I have a real craving for pickled onions at the moment . My husband bought some from Tesco's for me but they have 'sulphites' in them. I don't know if it is risky to eat something that contains sulphites (I don't really know what they are). Does anyone else eat pickled onions and have you had any strange reactions. Are they to be avoided while pregnant? Thanks!