Ingredient

Calcium Sulfate And Natamycin

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Source
Not animal-derived
Allergen
No
Role in food
Calcium sulfate is used as a firming agent, a dough conditioner, and a source …

What it is

Calcium sulfate is a mineral that occurs naturally in rocks and is also produced synthetically. Natamycin is an antimicrobial produced by the bacterium *Streptomyces natalensis*. It is made through fermentation.

Why it's used

Calcium sulfate is used as a firming agent, a dough conditioner, and a source of calcium. Natamycin is an antifungal agent used to prevent mold and yeast growth on the surface of foods, especially cheeses and processed meats.

Health notes

Calcium sulfate is Generally Recognized As Safe (GRAS) by the FDA for use in food. Natamycin is also approved by the FDA as a food additive. Both substances have been evaluated by international bodies like JECFA and EFSA. At typical consumption levels, they are not associated with adverse health effects.

Allergen info

Neither calcium sulfate nor natamycin are derived from the 9 FDA major allergens. They do not contain gluten.

Products containing Calcium Sulfate And Natamycin

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Reasors LLC Reasor's, Natural Cheese, Mozzarella, Mozzarella Cheese High in saturated fat — 20% DV per serving 321kcal 25Protein 21.4Fat 7.1Carbs Reasors LLC Reasor's, Sharp Cheddar Natural Cheese Cheese High in saturated fat — 30% DV per serving 393kcal 25Protein 32.1Fat 3.6Carbs Reasors LLC Finely Shredded Mexican Blend Natural Cheese Cheese High in saturated fat — 30% DV per serving 393kcal 21.4Protein 32.1Fat 7.1Carbs Reasors LLC Reasor's, Extra Sharp Cheddar Natural Cheese Cheese High in saturated fat — 30% DV per serving 393kcal 25Protein 32.1Fat 3.6Carbs Reasors LLC Pizza Natural A Shredded Cheese Cheese High in saturated fat — 22% DV per serving 357kcal 25Protein 25Fat 7.1Carbs Reasors LLC Finely Shredded Italian Six Cheese Cheese High in saturated fat — 20% DV per serving 357kcal 25Protein 25Fat 7.1Carbs
Salt (6 products) Enzymes (6 products) Corn Starch (6 products) Cheese Culture (6 products) Anticaking Agent (6 products) Potato Starch (6 products) Natural Mold Inhibitor (6 products) Pasteurized Milk (5 products) Cheddar Cheese (4 products) Pasteurized Part-skim Milk (3 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.