Fillers and stabilizers
Carrageenan
Definition
What it is
Carrageenan: seaweed-derived thickener; a 2018 EFSA assessment noted consistent evidence of gut inflammation in animal studies; banned from EU organic-certified products.
On the label
How it appears on labels
- carrageenan
Regulation
Regulatory status
- European Union Banned in organic products
- United Kingdom Banned in organic products
Explainer
In plain language
Carrageenan is a thickener and stabilizer extracted from red seaweed. It has no flavor and no nutritional value; its entire job is texture. It keeps cocoa suspended in chocolate milk, gives plant-based milks and creamers body, and holds moisture in deli meats.
Assessment
Why it is flagged
The debate centers on gut effects. Food-grade carrageenan is chemically distinct from degraded carrageenan (poligeenan), which is not permitted in food, but animal and cell studies have repeatedly associated even food-grade carrageenan with intestinal inflammation. EFSA's 2018 re-evaluation kept it authorized while flagging uncertainties in the data and calling for better characterization, and EU organic certification excludes it from some product classes. Human evidence is limited, and some people with sensitive digestion report doing better without it. Clear Label flags carrageenan so that pattern is visible and testable in your own logs, not because harm at normal intakes is established.
In the aisle
Where it commonly shows up
- Plant-based milks (almond, oat, coconut, soy)
- Chocolate milk and dairy drinks
- Coffee creamers
- Ice cream and frozen desserts
- Deli meats and rotisserie-style poultry
- Cottage cheese, sour cream, and squeezable yogurts
Practical
Reading the label
Carrageenan must be declared by name on US and EU labels, so it does not hide behind other terms. Refrigerated plant milks and creamers are the most common place to meet it; 'barista' versions in particular often rely on it or on gellan gum for foam and body.
Alternatives
If you want to avoid it
Some people choose plant milks whose ingredient list is just the base nut or grain, water, and salt. Many brands sell both a stabilized and a minimal version of the same product, so comparing two cartons side by side is usually all it takes.
FAQ
Common questions
Is carrageenan banned anywhere?
Food-grade carrageenan is broadly permitted. The EU excludes it from some organic-certified products, and EFSA has advised against its use in infant formula as a precaution. Degraded carrageenan (poligeenan) is not allowed in food anywhere.
Is carrageenan the same as poligeenan?
No. Poligeenan is carrageenan deliberately broken down with acid and heat for industrial and laboratory use, and it is not a food additive. The open research question is whether some degradation of food-grade carrageenan can occur during processing or digestion.
Why do gut-sensitive users watch it?
Animal studies have associated carrageenan with intestinal inflammation, and some people with IBS or IBD report fewer symptoms without it. Human evidence is limited, so Clear Label treats it as a pattern worth testing in your own food and symptom logs, not a settled harm.
Citations
Sources
Citation
Primary reference
About this page: the definition, label names, severity, and regulatory chips come from the clearlabel ingredient taxonomy, the same data the scanner uses to score products. Research summaries describe associations reported in published studies, not diagnoses; individual responses vary. Scan any product with clearlabel to see which of its ingredients carry flags.