An interesting read (well, I didn't read the whole thing..) about the difference between transubstantiation and consubstantiation:
http://www.christiancourier.com/ques...onQuestion.htm
Also, something I learned recently -
not sure if this is true for all branches of Christianity, but I know in the Catholic faith, the communion hosts (wafers) are required to have wheat in them. I learned this because one of the children at a First Communion I saw this past year was allergic to wheat. She got a separate host (it had been consecrated with the other hosts) that had only trace amounts of wheat. JTIS.
