3. Pineapple
If you’re looking for something that contains a substance that can break down stones, then you should look no farther than pineapple and pineapple juice. Not only does pineapple once again contain decent quantities of acid like lemon juice, but it also contains something called bromelain.
Bromelain is a naturally occurring digestive enzyme, meaning in other words that the body can use it to trigger reactions that will break down foods in the stomach.
As you might have guessed, this can also be useful for breaking down other substances including kidney stones.