Are ferric oxides vegan?

Ferric oxides, commonly referred to as iron oxide or rust, are a group of inorganic compounds naturally found in soil and rocks. These compounds vary in color, ranging from yellow to red and brown to black. As a food ingredient, ferric oxides are used as coloring agents due to their rich pigments and stability under various processing conditions. They can be found in a variety of foods and supplements, including breakfast cereals, baked goods, and vitamin tablets. Ferric oxides are generally recognized as safe (GRAS) by the FDA and are considered to have no significant impact on human health.