E401Carrier · Emulsifier · Humectant · Sequestrant · Stabiliser · Thickener
Sodium alginate
What the research shows
PrototypeNot enough
published research on this page yet
1 health finding on this page so far · See the findings
What research says
Animal and lab studies only
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Benefit
Body fat and gut germs3
In animal studies, sodium alginate cut body fat and changed gut germs, but results differed between males and females.
How it’s made and used
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Fish shelf life2
A sodium alginate coating on fish fillets slowed spoiling and kept them good longer in cold storage.
The signal at the top counts the findings in people and in animal and lab studies. A concern in studies of people outranks animal and lab studies, and “No concerns” needs at least two findings in people. Findings whose study type is not stated are shown but not counted. This page is a reference, not medical advice. It describes what regulators and published research say. Talk to a doctor or dietitian about your own diet.
Regulatory status
Checked Sep 2026-
United States Permitted FDA 21 CFR 184.1724
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European Union Permitted EUR-Lex Reg. (EC) 1333/2008
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United Kingdom Permitted FSA retained EU law
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Canada Permitted Health Canada · Emulsifying Gelling Stabilizing Thickening Agents
Status reflects the named register on the date checked. It is not a safety rating.
How we checkProducts
The 6 most-scanned of 4,113 products on Open Food Facts that list sodium alginate.
- MEAT-FREE TASTY SAUSAGES RICHMOND · 304 g 3 additives
- Traditional Dairy Ice Cream Mackie's of Scotland · 1 L 4 additives
- Olive Spread Tesco · 500 g 6 additives
- Cocktail sausages Quorn · 180 g 6 additives
- Fruit & Oat Bakes Apple Go Ahead · 210 g 13 additives
- 2 Sausages Quorn · 12 sausages 4 additives
References
- 1Alginic acid. Wikipedia. Accessed September 25, 2026.
- 2Cruz AIC, Costa MDC, Mafra JF, et al. A sodium alginate bilayer coating incorporated with green propolis extract as a powerful tool to extend Colossoma macropomum fillet shelf-life. Food Chem. 2021;355:129610. doi:10.1016/j.foodchem.2021.129610
- 3Chen Z, Ni M, Wang X, et al. The sex-specific effects of sodium alginate with varying viscosities on lipid metabolism and gut microbiota in rats. J Sci Food Agric. 2025;105(13):7578-7590. doi:10.1002/jsfa.70018