Ingredient

Sulfur Dioxide Corn Syrup

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Source
Not animal-derived
Allergen
No
Role in food
It is used as a sweetener and preservative in various baked goods, particularly cookies …

What it is

Sulfur dioxide corn syrup is a sweetener made from corn starch. It is produced by treating corn syrup with sulfur dioxide, a gas that helps preserve the syrup and prevent browning.

Why it's used

It is used as a sweetener and preservative in various baked goods, particularly cookies and biscuits. The sulfur dioxide content helps extend shelf life and maintain the product's appearance.

Health notes

Sulfur dioxide is a common preservative. The FDA lists it as Generally Recognized As Safe (GRAS) when used according to good manufacturing practices. Some individuals, particularly those with asthma, may be sensitive to sulfites, which are derived from sulfur dioxide, and can experience adverse reactions. JECFA and EFSA have evaluated sulfites and established acceptable daily intakes.

Allergen info

Sulfur dioxide corn syrup is not derived from any of the 9 FDA major allergens. It does not contain gluten.

Products containing Sulfur Dioxide Corn Syrup

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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.