when 7 years old, I nearly died with nepthritis [ kidney disease ]. At 39 year old, the pain in that area made me almost weep and it needed to be stopped. I felt something inside said to fast, take only lemon juice and eat "raw" comfrey - I did this from 4.00 pm friday until lunch time sunday and I have never had a pain there since and I am now 68years old. "I thank God for Comfrey" - since then I have spoke to people who have also been set free of disease in the kidneys through comfrey and its healing "alantoin". I only ate about 7 hand sized leaves over 3 days.