3. Lemon Juice
You must have drunk lemon juice at some point or the other because many people use it to flush fat. But let me tell you that orange juice contains citrate, which greatly helps in flushing out calcium from your kidneys. If you consume it, then along with cleaning the kidney, it also prevents the stone from growing from the kidney. So drink a glass of water after squeezing a lemon.
It will give a lot of benefit for your health and you will also like to drink very much, so you can consume it and it is easily available everywhere.