Seafood

[AliT]

After allergy testing in my teens I had an extreme reaction to Cod and was told to avoid seafood, particularly white fish and shellfish. However, I had already eaten tinned tuna for years and still do without any reactions. Why would I be severly allergic to some fish but not tuna?
Alex

[Dr Adam Fox]

the protein in fish that causes most allergy is present in much smaller quantities in tuna than in white fish. Canning tuna also makes it less allergenic so this is a common experience. However, I would still advise fish allergic patients to discuss the possibility of trying tuna with their doctors first.