and more is better which is a big mistake. in this particular study that was published in jama, they found if you take a thousand milligrams of vitamin c double the risk of getting kidney stones. the majority we see is calcium is oxalate and i will also tell you one of highest risk is dehydration. when you are not drinking enough water that is highest risk. if you have a family history, if you have a not drinking enough, you have to be careful about how much vitamin c you need. all you need is 90 milligrams a day. the other source is tea, it has a lot of oxalates and spinach. eric: how about popping vitamin c pills? i don t have time for taking all these other invite manipulates. if you have a good balanced diet