In light of the devastating earthquake and tsunami in Japan, I believe we all need to be concerned and pro-active regarding radiation exposure. Did you know that clinoptilolite (the type of zeolite used in NCD) was used at Three Mile Island to clean up radioactive wastes long before the nuclear disaster occurred at Chernobyl? My family and I take an activated liquid zeolite, NCD (Natural Cellular Defense) daily for prevention and we will certainly increase our intake under the current conditions. Read more »