It should not be complicated to combine both because as I mentioned in the article, it is only necessary to avoid foods that are VERY HIGH in oxalate, which are only a few foods. There are also other easy things that you can do to help prevent kidney stones like drink a lot of water and limit sodium. Limiting oxalates is not the most important thing to do. Also, the low FODMAP diet is a temporary diet, vs. the dietary changes that you make to help prevent kidney stones should be sustainable long term changes.