There are people who definitely claim that both the lemon juice and apple cider help them, however I can not say that either one has helped me at all. In reading many articles, I have also found that various and numerous physicians state that neither will do any good with regard to kidney stones. I guess if it works for you then it is good and if it doesn't work, it's definitely not that good. As I said, for me neither one has any positive affects but neither one can hurt you either so I can't see where it would hurt anyone to try one or both of those, in moderation of course.