Plenty of talk about the need of enzymes when killing your parasites.....such things were never discussed in the old books.....Dr. John R. Christopher suggested enzymes are needed in cancer treatment and to just eat the skin of a tree fruit works just fine or my favorite, eat some fresh pineapple, the pineapple has the reputation of allowing people to never die and look age 22 at 250 years old....only trouble is, we needed to have been raised on wild pineapple for the past 7 generations, which leads to being lead free and probably worm free.