Ingredient

Seaweed extract

Source
Not animal-derived
Allergen
No
Role in food
Seaweed extracts are primarily used as thickeners, stabilisers, and gelling agents in a wide …

What is Seaweed extract?

Seaweed extract is a general term for substances derived from various types of seaweed, such as kelp and nori. These extracts can be obtained through processes like boiling or pressing the seaweed to isolate specific compounds, often polysaccharides like alginates or carrageenan.

Is Seaweed extract vegan?

Seaweed extract is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Seaweed extract a major allergen?

Seaweed extract is not derived from any of the 14 major allergens that UK law requires to be emphasised on food labels.

What is Seaweed extract used for?

Seaweed extracts are primarily used as thickeners, stabilisers, and gelling agents in a wide range of food products.

Is Seaweed extract safe?

Certain seaweed extracts, such as alginates (E 401) and carrageenan (E 407), are authorised food additives in Great Britain.

Why it's used

Seaweed extracts are primarily used as thickeners, stabilisers, and gelling agents in a wide range of food products. They are commonly found in desserts, sauces, dressings, and processed meats, contributing to desired textures and mouthfeel.

Health notes

Certain seaweed extracts, such as alginates (E 401) and carrageenan (E 407), are authorised food additives in Great Britain. EFSA has evaluated these substances and established conditions for their use. Some studies have explored potential health effects, but evidence at typical dietary intakes is generally considered safe by regulatory bodies. Controversies sometimes arise regarding specific compounds or processing methods, but these are typically addressed through ongoing scientific review and regulatory oversight.

Allergen info

Seaweed extract is not derived from any of the 14 major allergens that UK law requires to be emphasised on food labels. Not a major allergen.

Foods that contain Seaweed extract

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Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Last updated: 17 October 2026

Note: This site presents label data from Open Food Facts for general information. It is not medical advice. Check the package label; formulations change.