<<Disclaimer: Verify this information before applying it to your situation.>> It seems that i recall some mention of silica being suggested as a possible carcinogen at some point. I have certainly not heard of it having any role in enhancing gut mucosal regeneration. i would certainly be interesting in seeing it if there were. Joe murray On Tue, 6 Dec 1994, Portia wrote: > It has ocurred to me that silica (or silicon) may be beneficial in > healing the gut wall since it is essential for the maintainance of mucous > membrane linings in the body. Horsetail is an excellent source of natural > silica and I was wondering if it is gluten free? Thank you for all your > interesting and very informative postings.