Shellfish
Includes shrimp, crab, and lobster — a leading cause of adult food allergy.
Shellfish allergy is one of the most common adult-onset food allergies and is often lifelong. The main allergen is tropomyosin, a muscle protein. Reactions can range from mild hives to severe anaphylaxis. Shellfish allergy is separate from fish allergy. Crustaceans (shrimp, crab, lobster) and mollusks (oysters, clams, scallops) are the two main categories.
Educational content: This page is for general informational purposes only. Individual responses to foods vary widely. If you suspect a food allergy or sensitivity, consult a licensed dietitian, allergist, or physician before making dietary changes. Full disclaimer
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