Does silicon dioxide used as an additive in food contain gluten?

No, silicon dioxide used as an additive in food does not contain gluten. Gluten is a protein found in wheat, barley, rye, and other grains. Silicon dioxide, on the other hand, is a mineral that is composed of silicon and oxygen. It is commonly used as an anticaking agent in food products to prevent them from clumping. It is generally considered to be safe for consumption and does not contain any gluten.