Wow that is a pretty interesting article on ciguatoxin on the home page of immune support. The fact that the researchers claim to have found such a high amount of ciguatoxin in CFS patients is very intresting indeed. If you were like me the first thought after reading that article was,” What the heck is ciguatoxin”? I found a couple of websites that explain, somewhat in layman terms, what ciguatoxin is. These all appear to be medical abstracts so hopefully there will be no objection. (Edited by Moderator to Remove URL's) This is what the internet had to say. A poisonous substance, ciguatoxin is produced by microscopic organisms that grow on the surface of marine algea (dinoflagellate- particularly gambierdiscus toxicus). It is found in reef areas of the ocean and is accumulated up the food chain so that as the little fish eat the algae and the big fish eat the little fish the concentration becomes greater and is at its greatest concentration when/if we eat the big fish. The toxin cannot be destroyed by cooking, freezing or drying. It is best to avoid eating food from reef areas where the toxin is present. Supposedly the symptoms abate within six months, barring repeated exposure. Okay, where do I get tested?