/liveto110.com/oxalates-their-influence-on-chronic-disease/Diets often heavy on these nut flours include: SCD, GAPS, and Paleo. And vegetarian diets are often high in oxalate; since they usually include many beans, grains, nuts and seeds, as well as high oxalate greens or starchy vegetables, like spinach or sweet potatoes.
Practitioners should be aware that diets high in oxalate could create a wide variety of problems for some people. Making informed choices or modifying a diet for oxalate can make a dramatic difference in lowering the oxalate load (note: it is important to reduce oxalates in the diet very slowly).
It's worth reading the whole article.