Ingredient · Updated

Carrageenan

Flagged in 37

Found in 37 productsSee all

What is Carrageenan?

Carrageenan is a natural polysaccharide derived from red seaweed. It is extracted through boiling the seaweed in an alkaline solution, then filtered and ground into a fine powder.

Carrageenan is widely used as a thickener, gelling agent, and stabilizer in various food products, including dairy and plant-based milks, ice cream, and deli meats. Health research on carrageenan is mixed: some animal studies suggest it could cause digestive inflammation, while many regulatory agencies deem it safe for consumption.

When you see carrageenan on a label, it indicates that the product has been formulated for a smooth texture or stable shelf life. It’s often found in organic and vegan products as a non-synthetic alternative to other thickeners.

Commonly found in: dairy products, plant-based milks, ice cream, processed meats, jellies

What to watch

  • Some studies suggest carrageenan may induce intestinal inflammation in animal models.
FDA

Carrageenan is approved by the FDA for use in foods and is generally recognized as safe (GRAS).

Research

Research findings are mixed, with some animal studies suggesting potential for inflammation, yet little evidence from human studies.

Vegan

Carrageenan is plant-derived, making it suitable for vegan diets.

Sources: Food Additive Status List · Scientific Opinion on the Re-evaluation of Carrageenan as a Food Additive

Scout's take

Seaweed-derived thickener linked in some studies to gut inflammation.

The case against

May cause digestive inflammation and discomfort in sensitive individuals.

from the analysis of Turkey Hill Ice Cream Choco Mint Chip Ice Cream - 1.44 qt · echoed in 3 other analyses

May cause gastrointestinal inflammation and discomfort in sensitive individuals.

from the analysis of Pasteurized Soft Blend SULA Spread · echoed in 2 other analyses

May cause gastrointestinal inflammation and discomfort in some individuals.

from the analysis of Kemps Low-Fat Swiss Style Chocolate Milk, 1 Pint · echoed in 1 other analysis

May cause digestive issues and inflammation in sensitive individuals.

from the analysis of Fairlife CHOCOLATE HIGH PROTEIN MILK SHAKE · echoed in 1 other analysis

Linked to digestive issues and potential inflammation.

from the analysis of Abbott Optigro grow & gain vanilla shake

The case for

Used to improve texture and stability in food products.

from the analysis of Pasteurized Soft Blend SULA Spread

More from Scout's analyses

Carrageenan is used as a thickener and stabilizer but has been linked to digestive issues. It is derived from seaweed but can cause inflammation in some individuals. Its safety is debated, with some studies suggesting potential gastrointestinal effects.

from the analysis of Fairlife CHOCOLATE HIGH PROTEIN MILK SHAKE

Carrageenan is a thickening agent derived from seaweed but is controversial due to potential digestive issues. Some studies suggest it may cause inflammation or gastrointestinal discomfort. It is used to improve texture but has no nutritional benefits.

from the analysis of Ensure Original Nutrition Shake Vanilla

Carrageenan is a thickening and stabilizing agent derived from red seaweed. It is controversial due to potential inflammatory effects in the digestive system. Some studies suggest it may cause gastrointestinal discomfort in sensitive individuals.

from the analysis of Kemps Low-Fat Swiss Style Chocolate Milk, 1 Pint

All 37 products with Carrageenan

+ 13 more products in the Scout app

Where Carrageenan shows up

Higher-scoring picks without Carrageenan

Products from the same categories whose analyzed ingredient list does not include Carrageenan, scoring 80 or above.

Scan any product to see every ingredient explained — and healthier swaps.