This morning I got up to go to the toilet, I never noticed it but my pee was very brown, a not very normal colour that urine should be. I have been told by family that it could be a kidney/liver problem. I drink a lot of Coca Cola and have done for years, since the age of 4. I am 16 now and the night before this morning I drank a total of 7 cans of Coca Cola. Could this be a cause of my brown pee?