Before I knew I had mercury poisoning, I started to have coriander (name we give to cilantro) quite a lot. Within no time I had really bad resurgence of symptoms. I was also taking glucosamine sulphate, but I'd taken this before without any such bad effects. It was this worsening of symptoms that made me look up on the internet and I found out about the fillings. I don't know for sure, but I suspect taking coriander in soups and in dishes might have done something.