 Lists that you can find on the Internet that tell you which foods are high oxalate. So most of the green leafy vegetables, things like kale and spinach, greens are fairly high in oxalates. And then there's some outliers, things like peanuts and chocolate, for example. Cocoa is high in oxalates. And so for people like kidney stones, that's a definite must. Then we move into kind of the controversial assertions by Sally Norton.