Is e172 oxyde et hydroxyde de fer vegan?

The label term e172 oxyde et hydroxyde de fer is French for iron oxides and hydroxides, a group of mineral-based colorings designated by the European food additive code E172. Although these chemical compounds occur naturally as mineral ores, the varieties approved for food use are produced synthetically. Manufacturers create them through the controlled chemical oxidation and precipitation of iron salts to ensure the final pigments are free from heavy metal impurities. They are used to impart yellow, red, brown, or black hues.

Food producers list this coloring in items such as candies, cake decorations, dessert glazes, chocolate coatings, and pharmaceutical capsules. This ingredient is vegan because it is derived exclusively from synthetic chemical processes using mineral raw materials. No animal tissues, animal-derived processing aids, or animal byproducts are involved at any stage of its production, making it suitable for a plant-based diet.