Kidney function declined over two decades in women who drank several diet sodas a day, according to research. Compared with women who did not drink diet soda, soda-drinking women had a 30% greater reduction in kidney function in 20 years. Repeated alcohol consumption can raise your blood pressure too much and lead to dehydration, according to a study. Chronic drinking can also cause liver disease, which makes the kidneys work harder. Alcohol can change the organs’ function by making them less able to filter your blood, according to the National Kidney Foundation.