The best drink to cleanse and flush your kidneys is plain water.
Drink at least 8 glasses of water per day to reap the full health benefits of water and to keep your kidneys flushed out and healthy.
Water is also the best hydration drink as well.
Drinking fruit juice or cranberry juice can also help to flush your kidneys out and even beer if you like beer a can of beer per day or every other day can also flush your kidneys and promote good kidney health.