Hans, << Uric acid. >> I have read that uric acid levels get too high when too much animal protein is consumed. The kidneys can't handle it, and it will eventually be deposited in the muscles, where it can cause rheumatism. Maybe your body is more adapted to a diet that contain less meat. There are peoples who eat very little meat in this world, maybe you are more like them, then your more ancient ancestors. Maybe your kidneys need a rest to heal from your past, before they can handle all the meat. If you already have kidney stones, perhaps your kidneys need healing. aaron