Seafood Intolerance

If you have an intolerance (defined by YorkTest as a food-specific IgG reaction) to seafood or shellfish, your body produces an inflammatory response to the fish or shellfish proteins present.

Unlike seafood allergy, the effects of seafood intolerance are usually delayed, and are not life threatening but can cause you to feel unwell.

Where To Look

If shellfish is present in a food product, it is usually listed on the packaging. However, it is a good idea to familiarise yourself with the various types of seafood and shellfish to be aware of if you have a seafood intolerance.

White fish (cod, plaice, sole, coley, haddock, pollock, monkfish)
Oily fish (mackerel, tuna, sardines, anchovies, salmon, pilchards, herring, trout, tuna)
Molluscs (clams, mussels, oysters, snails, scallops, squid, octopus)
Crustaceans (crab, lobster and shrimp)

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Easy to use home-to-laboratory test kit

Take our most comprehensive food and drink intolerance* test to find out whether you have an intolerance to 200 food and drink ingredients. Simply take a finger-prick blood sample and return by post for testing. Receive your results within 7 days! No social interaction required.

Optimise your lifestyle with our support, knowing which foods you’re reacting to.

Discuss your results with a nutritional therapist. One 30-minute consultation included
Measures all four subtypes of food-specific IgG
Simple finger-prick blood test
Receive expert, accurate analysis from our fully-accredited laboratory technicians
Results listed in easy-to-read traffic light values: high, borderline, and normal reactivity
Track your progress with a food and drinks diary
This test is not available to customers who are pregnant or breastfeeding

Replacements for a balanced diet

White fish is an excellent source of protein, vitamins and minerals. The Food Standards Agency recommends that we eat at least two portions of fish a week, with at least one of these being oily fish which is particularly nutritious.

However, if you are suffering from a seafood intolerance, it is important to discover which seafood in particular you react to and to make sure you include suitable fatty acid replacements in your diet such as:

Leafy greens such as spinach
Avocado
Walnuts, brazil nuts, hazelnuts and pecans
Olive oil and flaxseed oil
Eggs
Sesame butter, pumpkin seed butter
Tofu
Coconut oil

If you have found out that you are intolerant to seafood or shellfish, changing your diet need not be daunting. YorkTest Nutritional Therapists are here to help you understand how to optimise your food choices.