Oxalic Acid In Greens Causing Kidney Stones?

Let’s address the claim that oxalic acid in spinach and other greens causes kidney stones… By Alina Munson, Owner, Alina’s Green Smoothies (Calgary) About 85% of all kidney stones contain calcium salts, calcium oxalate and/or calcium phosphate. It seems logical to connect calcium oxalate with oxalic acid in some foods such as spinach, soy, tea, coffee, wheat, and some others. However,…