Food additive E551 could promote celiac disease

E551, more commonly known as silicon dioxide, is a powder composed of nanoparticles (i.e., particles < 100 nm in size). It serves as an anti-caking agent in an array of dry and powdered foods, including soups, spices, cereal-based infant formula, instant coffee, cocoa mix, and freeze-dried pasta. It can be found among the ingredients of over 2,600 processed foods worldwide.