I had a myocardial infraction on 12th june 2018, and underwent cabg on 3rd july 2018. During that my creatinine rose up to 2.33, then it reduced to 2.25, 1.92, 1.67, and now it is stagnant at 1.51. My elder brother died due to kidney failure, at the age of 53, and so I want to lower my creatinine as soon as possible, naturally. I am not taking any medications for kidney, as my doctors say that this level of creatinine will reduce on its own. What should I do to lower it rapidly and naturally?