Ingredient · E407

Red Seaweed Extract

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Source
Not animal-derived
Allergen
No
Role in food
Carrageenan is commonly used as a thickener, stabilizer, and emulsifier in a variety of …

What it is

Red seaweed extract, also known as carrageenan, is a food additive derived from red seaweed. It is extracted from various species of red algae, primarily those in the Gigartinaceae and Solieriaceae families. The process involves washing, drying, and then extracting the carrageenan with hot water or alkali.

Why it's used

Carrageenan is commonly used as a thickener, stabilizer, and emulsifier in a variety of food products. Its ability to form gels and thicken liquids makes it useful in dairy products like ice cream and yogurt, as well as processed meats, sauces, and desserts. It helps improve texture and prevent ingredients from separating.

Health notes

In the U.S., carrageenan is generally recognized as safe (GRAS) by the FDA for use as a food additive. Some studies have raised questions about its potential effects on digestion, but regulatory bodies like the WHO/FAO Joint Expert Committee on Food Additives (JECFA) and the European Food Safety Authority (EFSA) have evaluated it. Evidence regarding its impact on human health at typical consumption levels is mixed, and research is ongoing.

Allergen info

Carrageenan is derived from seaweed and is not one of the FDA's nine major food allergens. It does not contain gluten.

Products containing Red Seaweed Extract

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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.