Oxalic acid is naturally found in many healthy plant-based foods. People with kidney stones or a history of kidney stones may need to eat a low-oxalate diet. Pairing oxalate-rich foods with calcium ...

Oxalic acid, or oxalate, is a naturally occurring organic compound in plant foods like vegetables, fruits, grains, and nuts. Your body also produces small amounts of oxalate. Oxalic acid is sometimes ...

Q: I've heard that spinach and some other vegetables contain significant amounts of oxalic acid, which can interfere with absorption of some minerals. What do you think about the oxalic acid issue? A: ...