Betanin is a type of pigment found in beets that gives them their deep red color. This pigment is known by several synonyms, including beet red, betanidin, and E 162. Betanin is a water-soluble compound that has been found to have antioxidant and anti-inflammatory properties and may help lower blood pressure. It is often used in the food industry as a natural food dye and in cosmetics as a coloring agent. Other synonyms for betanin include betanin red, betanine, betaninum, and betanina. While betanin is most commonly associated with beets, it is also found in other plants such as Swiss chard and amaranth.