Ingredient

Glycol

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Source
Not animal-derived
Allergen
No
Role in food
Propylene glycol is often used in foods as a humectant (to retain moisture), solvent …

What it is

Glycol is a general term for a class of organic compounds. The most common type used in food is propylene glycol, which is a synthetic liquid that absorbs water. It is made from petroleum products.

Why it's used

Propylene glycol is often used in foods as a humectant (to retain moisture), solvent for flavors and colors, and as an emulsifier. It helps prevent ingredients from separating. It is commonly found in baked goods, frostings, and frozen desserts.

Health notes

In the US, propylene glycol is generally recognized as safe (GRAS) by the FDA when used for specific purposes. It is metabolized by the body and is not stored. JECFA has evaluated propylene glycol and set an acceptable daily intake. Some people may experience mild side effects like nausea or diarrhea if they consume very large amounts, but this is rare at typical food intake levels.

Allergen info

Propylene glycol is not derived from any of the 9 FDA major allergens. It does not contain gluten.

Products containing Glycol

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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.