Ingredient · E170

E170

Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Source
Not animal-derived
Allergen
No
Role in food
Calcium carbonate is used as an anti-caking agent, a colorant (providing whiteness), and a …

What it is

E170 is calcium carbonate, a naturally occurring mineral found in rocks like limestone and chalk. It is purified and processed for use as a food ingredient. It is also produced synthetically.

Why it's used

Calcium carbonate is used as an anti-caking agent, a colorant (providing whiteness), and a nutrient supplement in foods. It is commonly found in baked goods, confectionery, and some processed foods.

Health notes

In the US, calcium carbonate is Generally Recognized As Safe (GRAS) by the FDA for use in food. It is also a source of calcium, an essential nutrient. JECFA and EFSA have evaluated calcium carbonate and established acceptable daily intakes. It is not associated with significant health concerns when consumed at typical dietary levels.

Allergen info

Calcium carbonate is not one of the 9 FDA major allergens and does not contain gluten.

Products containing E170

Compare products →

Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.