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EDTA calcium disodium (also known as ethylenediaminetetraacetic acid or EDTA) is a salt of edetate with two sodium atoms and one calcium atom. It is a colorless, odorless crystalline powder. It is a slightly salty food additive that stabilizes and preserves many foods and beverages. EDTA calcium disodium also acts as a chelating agent.
The food and beverage industry uses EDTA to preserve the color, texture, and flavor of many foods. It helps stabilize foods to extend their shelf life. Examples include:
Some heavy metals are essential for life, such as iron, copper, and zinc. However, too much of these essential minerals can become toxic in the human body. Numerous other heavy metals are inherently toxic, including arsenic, mercury, and lead. EDTA calcium disodium is a heavy metal agonist and facilitates chelation. It bonds to heavy metal ions and makes them almost completely chemically inactive. The body can excrete heavy metals through urine once they’re in this nearly inert state.
EDTA has had FDA approval as a food additive since 1953. EDTA does not typically cause side effects in standard amounts, as the digestive tract only absorbs around 5% of it. Large doses may reduce appetite or cause diarrhea.
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