★★★★★
Undiagnosed officially but when I had acute pain in area where gall bladder is supposed to reside, after eating too many greasy foods, on more than one occasion I have taken apple cider vinegar which helped quickly. Again, several times I had sudden great pain and pressure in lower back, again undiagnosed but which appeared to be the passing of a kidney stone, I drank Aloe Vera juice and got immediate relief. It can't be proved, but at any rate both products are harmless.