Keith E-Mailed Mike Larson about the Zeolite/Aliminium connection and bless him he E-mailed straight back with a detailed explanation of why it is no threat, I explained how I felt when I took it and he said not to worry that is a good sign that it is working for you. He has asked for my phone number and says he will call me promptly to discuss all matters concerning the toxicity. I actually missed a phone call this afternoon which I did not recognise. Any Americans know the code to States from England cheers Tracy ps if I find out anything else helpful I'll post straight away.