I have used Natural Cellular Defense for CFS symptoms suffered after getting a seafood toxin. Great Stuff!!! It took around a week to notice change. I personally know of an MD and an engineer who's chronic lyme's disease improved. I gave a bottle of drops to a teacher with CFS, and she has much less fatigue. I can get you one bottle at cost. Wish I could give it to you!!! Cindy, mdhoover@pol.net [color:"blue"] [/color] [color:"purple"] [/color] (a doc in Iowa )