Alcohol is one of the major facts behind high creatinine in kidneys. Aside from this high protein and salt intake also increase the creatinine levels. There are two factors that prove that ginger is good for creatinine. The first one is scientific research on mice has shown that ginger extract can reduce creatinine levels. The second one is that you will get less than 1 gram of protein from the daily recommended ginger intake. This bare minimum intake will not boost creatinine.