Additive

Carrageenan

Carrageenan is a seaweed-derived ingredient commonly used to thicken, stabilize, or improve texture in foods and drinks.

Reviewed June 17, 2026

Quick answer

Carrageenan helps foods stay thick, smooth, or evenly mixed. You may see it in dairy products, dairy alternatives, desserts, sauces, and other packaged foods.

Why it is used

Food makers use carrageenan to thicken foods, stabilize mixtures, improve smoothness, help prevent separation, and support texture.

Where you might see it

  • Plant-based milks
  • Dairy products
  • Frozen desserts
  • Sauces
  • Prepared foods

What to check on the label

  • Use carrageenan as one ingredient signal, not a full product judgment.
  • Compare similar products with and without carrageenan if it is a personal preference.
  • Check sodium, added sugars, saturated fat, and serving size for the broader label picture.

Sources and review

This entry is written for educational label context and reviewed against source-backed internal references.

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