Hidden allergen names
Other names for shellfish on labels
Shellfish covers crustaceans and molluscs. UK labels list them as two separate allergens. These are the names ClearaScan looks for when shellfish is on your list.
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Names that can mean shellfish
Crustaceans
- crab
- crayfish (crawfish)
- lobster
- prawn
- shrimp
- scampi
- langoustine
- krill
Molluscs
- abalone
- clam
- cockle
- mussel
- octopus
- oyster
- scallop
- snail (escargot)
- squid (calamari)
US labels must declare crustacean shellfish; molluscs are declared on UK labels.
How labels show allergens. In the UK, the 14 major allergens must be emphasised in the ingredients list, for example in bold. In the US, the nine major allergens must be named on the label, in the ingredients or in a "Contains" statement. "May contain" warnings are voluntary in both countries.
Questions
Does ClearaScan catch these names for shellfish?
Yes. Add shellfish to an Ingredient Guard and ClearaScan looks for these names on every label it reads for that person.
Is this list complete?
No list can be. Always read the label, and ask your doctor or dietitian what you need to avoid.
Sources
- Food Standards Agency: Food allergy and intolerance advice for consumers
- US Food and Drug Administration: Food Allergies
Links go to independent organisations and to each app's own pages, for the facts on this page. They have not reviewed or endorsed ClearaScan.

