I think moderation is the key. As OCD sufferer, all this is starting to give me an eating disorder. I have lost a stone in weight since the summer because right now I am scared of eatiing almost everything - either beacuse it comes from a tin, is in a foil container, cooked in tin, contains soya, or something else, or is high carb, contains sulpher, is animal derived, not enough protein, not organic etc. I can't live like this. So, for me, I'm just going to go down the "everything in moderation route" otherwise it won't be mercury or anything else that will kill me, but starvation.