Egg intolerance test: a shortlist of egg-related foods worth exploring first
You blamed the coffee, then the porridge, then stress — changing one thing at a time and never sure what helped. And eggs hide in more meals than you’d expect: baking, mayonnaise, fresh pasta, even some sausages. Get a personalised shortlist of egg-related items worth exploring first, then test the connection properly with a focused 6-week elimination.
What this screen is — and what it is not
What it is
A food sensitivity screening that gives you a starting list of foods to explore, based on a hair sample sent to our UK lab
Non-invasive, needing just 9 or 10 strands of hair
Results within 3 working days of your sample arriving, with a 90-day money-back guarantee
A practical prompt for an elimination diet, which is the most reliable way for you to confirm a food sensitivity for yourself
Useful for spotting patterns and narrowing down which foods to trial first
A low-effort first step that can save you guessing where to begin
What it is not
NOT a validated method. There is no robust published evidence that screening hair identifies which foods do or do not suit you — the report is a starting shortlist, and it is the elimination diary that shows a link.
A medical diagnosis. Only your GP can diagnose a condition
An allergy test. We do not measure IgE, the antibody behind immediate allergic reactions
A measurement of antibodies of any kind — hair doesn’t contain them, so the test cannot quantify an immune response; that’s why the elimination diet, not the report, is what confirms anything
A replacement for coeliac testing or other medical investigations, which work in completely different ways
Guaranteed to find the cause of your symptoms, or to be accurate for everyone
A cure or a treatment. Any change in how you feel comes from the elimination process and the diet changes you make, not from the test itself
Why Eggs Matter: The Protein Picture
ONE EGG, DOZENS OF PROTEINS: Eggs are surprisingly complex. A single egg contains dozens of different proteins, and not all of them affect everyone the same way. The proteins most often discussed in relation to sensitivity are ovalbumin and ovomucoid, both found mainly in the white.
WHITE VERSUS YOLK: Some people find they react to egg white while tolerating yolk perfectly well, because yolk has a different fat and protein make-up.
WHY COOKING CHANGES THINGS: Heat matters too: thorough cooking denatures (unfolds) many egg proteins and changes their structure, which is why some people manage well-baked egg but not raw or lightly cooked egg.
WHAT A HAIR SCREEN CAN’T DO: Here’s the honest part: a hair screen doesn’t measure any of this happening in your body. It doesn’t measure antibodies, immune activity, or how your gut responds to egg. What you send is 9 or 10 strands of hair; what you get back — within 3 working days of your sample reaching our UK lab — is a personalised report covering 700+ items, with egg white, yolk and whole egg flagged separately as things worth exploring first. The real evidence comes from the elimination diet: removing those foods, keeping a diary, and seeing for yourself what changes.
Does this sound like you?
Bloating or stomach discomfort after meals containing egg
Skin changes such as itching or rashes appearing hours after eating egg
Tiredness or foggy-feeling mornings after an egg-based breakfast
Mild nausea or queasiness after eating egg
Looser stools or digestive changes linked to egg-containing meals
Headaches some people associate with certain meals
Aches in joints or muscles a few hours after eating egg
Congestion or extra mucus that seems to follow certain foods
Related foods worth checking at the same time
Chicken and other poultry meat. A small number of people who react to egg also notice poultry, sometimes called bird-egg syndrome, though this is uncommon and usually allergy-related rather than intolerance
Duck, goose and quail eggs, which share many proteins with hen eggs
Mayonnaise, hollandaise, aioli and other egg-based sauces. Obvious once you know, but easy to miss on a label
Foods made in shared facilities, where egg traces can carry over (this is contamination, not true cross-reactivity)
Processed foods listing albumin, ovalbumin or dried/powdered egg among the ingredients
Foods and items commonly linked to eggs
These are the kinds of items people most often look at for this topic. For the definitive list of what each screen covers, see the full food list and the non-food list.
Egg White
Egg Yolk
Whole Egg
Ovalbumin
Ovomucoid
Albumin
Chicken
Duck Egg
Quail Egg
How to run a focused elimination
Plan for a 6-week core elimination plan, then optional staged reintroduction.
Day one: Start your food and symptom diary — energy, digestion, skin, sleep. The 90-day guarantee asks you to follow your plan for at least 6 weeks with a diary, so begin both together.
Weeks 1–2: Remove all visible egg and obvious sources: omelettes, scrambled egg, quiche, fresh egg pasta, and baked goods made with whole egg.
Weeks 1–6: Hunt the hidden egg too. Read labels for albumin, ovalbumin, ovomucoid, ‘egg powder’ and ‘dried egg’, and check condiments like mayonnaise and salad dressings, plus many processed and baked foods.
Weeks 3–6: Keep the elimination steady to the end of the core plan. If things settle during the egg-free weeks, that suggests egg is worth confirming through reintroduction.
After week 6 (optional staged reintroduction): Start with a small piece of well-baked cake or biscuit, where egg has been cooked at high heat for 20–30 minutes — thorough baking changes the proteins, and it’s often the most manageable form. Leave 3–5 days between steps.
Next steps: If baked egg goes well, move to lightly cooked (scrambled, soft-boiled), and only then rawer forms — watching quantity and frequency. Throughout, track whether whites, yolk or both seem to matter: many people can manage one but not the other, and that detail makes long-term choices easier.
Move from well-cooked, to lightly cooked, to raw, leaving 3 to 5 days between each step so you can read your body’s response clearly. If you notice symptoms return, pause, set that form of egg aside for a few weeks, then try again more gently. If reintroduction goes smoothly, you have learned something useful: perhaps your sensitivity has settled, or perhaps you have simply found your personal threshold, such as ‘egg in baked goods is fine, but daily scrambled eggs are not’.
Common questions
Can I have an egg intolerance if I can eat baked goods fine?
Often, yes. Thorough cooking changes egg proteins, so you might be comfortable with well-baked cake or biscuits, where egg has been cooked at high heat for 20 minutes or more, yet notice symptoms with scrambled egg or raw cookie dough. It is a common pattern and well worth exploring during staged reintroduction.
What is the difference between egg intolerance and egg allergy?
An egg allergy is IgE-mediated and tends to cause immediate symptoms such as hives, swelling or breathing difficulty within minutes. It can be serious and should always be assessed by a doctor. A food intolerance generally causes slower, milder symptoms such as bloating, tiredness or skin changes that appear hours later, and works through different pathways. They are not the same thing and need different approaches, which is why your GP is the right person to check for allergy.
Does the test tell me if I am reacting to egg white or yolk?
Our panel flags egg white and yolk separately, alongside whole egg, ovalbumin and ovomucoid, so you get a more detailed starting point. The clearest answer, though, comes during elimination and reintroduction, where you can directly observe whether white, yolk or both seem to affect you.
Is a food sensitivity test reliable?
It is best thought of as a starting point, not a definitive answer. Our test uses a hair sample, which does not contain antibodies, so it does not measure your immune response. It gives you a focused list of foods to explore. The dependable part is the elimination diet itself: removing a food, watching what changes, then reintroducing it. That is why we always pair the test with the elimination process rather than treating the result as the final word.
What if egg doesn’t come up on my report but I still feel unwell after eating it?
A clear report doesn’t rule a food out. Some reactions involve histamine or other compounds rather than the proteins a screening focuses on. If you suspect egg, keep a food diary and consider trialling a careful elimination anyway. If symptoms persist, your GP can help look into other explanations.
Should I stay egg-free forever?
Not necessarily. The 6-week core elimination followed by staged reintroduction is designed to help you find your own comfortable level. Some people return to eating egg normally afterwards. Others settle on having it occasionally, or only in certain cooked forms. The aim is to listen to your body and adjust your diet to suit you.
When to speak to your GP. This page is here to support your own exploration, and it is complementary to, not a replacement for, medical advice. If you have worked through egg elimination and reintroduction and still have unexplained symptoms, please see your GP. They can check for an IgE allergy (via skin-prick or specific IgE blood testing), assess for coeliac disease, and consider other explanations. Always speak to your GP first if you have had any sudden or severe reaction such as swelling or breathing difficulty, or if digestive or skin symptoms are persistent.
