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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
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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:

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

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.

4 Simple Steps To A Better You

1

You will receive your testing kit in the post

2

Take a blood sample with our easy to use finger-prick test kit

3

Send your sample back in the prepaid envelope provided

4

Receive your test results online within 7 days

How It Works
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Beef Intolerance

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Caffeine Intolerance

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Bananas

Banana Intolerance

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Gluten Intolerance

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Wheat Intolerance

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Dairy Intolerance

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Case Studies

a young woman with long dark hair and dark top smiling at the camera

Abigail Nicholls

I can honestly say i feel like the best and healthiest version of myself – I’m no longer filling my body with things it doesn’t like and instead focusing on fuelling it properly. Taking the test was one of my best decisions to date!

Symptoms Acne, fatigue, bloating and stomach cramps

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man in his 30s wearing glasses and smiling at the camera

Amanvir Kalkat

I am happier and healthier. It was great to know what I should avoid eating without having to second guess or trial and error constantly.

Symptoms Digestive issues, lethargy

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Severe psoriasis addressed with food intolerance testing programme

Angela Barber

I’m healthier, fitter and have more energy, and am more mentally positive. I wish I’d been tested earlier, it would have transferred my confidence in my youth

Symptoms Psoriasis, insomnia

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Christine Greenfield

Christine Greenfield

No headaches, finally leading a normal, much happier life

Symptoms Headaches, migraines

Read More
A young woman with glasses, blond curls and a white top posing for the camera.

Eleanor Newton

I couldn’t imagine going back to the life I had before this test! I’m so relieved I did it. You only get one body, so you need to look after it, and I’m so glad I made the decision to look after mine.

Symptoms Stomach aches, bloating, gas, headaches, brain fog

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