Carboxymethylcellulose Sodium

Carboxymethylcellulose sodium, often called CMC, is a modified form of cellulose, which is a natural polymer found in plants. It is made by treating cellulose with chemicals to create a water-soluble substance. It is a white, odorless powder that dissolves in water to form a viscous liquid.

Manufacturers add CMC to foods to thicken them, improve texture, and prevent ingredients from separating. It is commonly found in low-fat foods, baked goods, beverages, and dairy products. It can also be used to stabilize emulsions and suspensions.

Carboxymethylcellulose sodium is considered safe by the FDA and is generally recognized as safe (GRAS) for use in food. It is poorly absorbed by the body and passes through the digestive system largely unchanged. International bodies like JECFA have evaluated CMC and found no safety concerns at typical consumption levels. Evidence does not suggest adverse health effects from consuming CMC at levels typically found in food.