OK so I get this comment the other day on Mercury causing MS. Other than there is no proof of that, and quite a bit to the contrary I won’t really digress into all the issues. I know people have problems with Thimerosal but it is a different type of mercury with a very short half life in the body; something in the order of a day or two. Regardless, I have no fillings (yet!) so no Mercury there; plus I eat almost zero fish so no Mercury there. I probably have an extremely low amount of Mercury in the system; so that is definitely not the cause of my MS.