Your correct 8963......GSE will kill the good bacteria in your gut...I also read somewhere that it can damage your intestinal lining. This is some powerful stuff...Vanmel,if you have a white coating on your tongue, Grapefruit-Seed-Extract is great for it as a mouthwash...Dont ingest it though...I can be wrong though, but for people who have a white coating on there tongue, I believe that they have an overgrowth of candida in there intestines.