Chicken meat allergy
Allergy to chicken meat.
About chicken meat allergy
Allergy to chicken meat is uncommon, and it can occur in a couple of ways. Some people develop a direct IgE-mediated allergy to chicken-muscle proteins. Others are affected through the bird-egg syndrome, in which allergy to bird proteins (often from egg or from contact with birds) cross-reacts with proteins in chicken meat, so a person sensitised to egg or feathers may react to poultry. In both cases the immune system produces IgE antibodies that drive the reaction.
Symptoms usually begin within minutes to two hours of eating and can include an itchy mouth, hives, swelling, stomach upset and wheezing; more severe whole-body reactions are possible but uncommon. Interestingly, some people tolerate well-cooked chicken better than raw or lightly cooked chicken, because heat alters some of the proteins involved. Allergy to chicken meat does not necessarily mean a person will react to other meats, though the egg-bird link is worth exploring.
Diagnosis is made by an allergy specialist using skin-prick or specific-IgE blood tests alongside the history, with component testing and sometimes a supervised food challenge to clarify the picture. Management is based on avoiding chicken, and where relevant considering the connection with egg and bird exposure, while reading labels on stocks, soups and processed foods. People at risk of severe reactions may be prescribed an adrenaline auto-injector. Treat any severe reaction with breathing difficulty or collapse as an emergency and call 999.
Common triggers
- Chicken meat and products containing it
Symptoms
- Itching or tingling in the mouth
- Hives, itching or eczema
- Swelling of the lips, face, tongue or throat
- Stomach cramps, nausea, vomiting or diarrhoea
- Wheezing or trouble breathing
- In severe cases, anaphylaxis
Avoidance & management
- Read ingredient labels every time
- Ask about ingredients and cross-contamination when eating out
- Keep the food out of shared cooking areas
- Carry prescribed antihistamines or an adrenaline auto-injector
- Seek emergency help for any severe reaction
Sources & references
Allergy safety: what everyone should know
Mild-to-moderate reaction signs
- Itching, hives or a raised rash
- Swelling of lips, face or eyes
- Tingling mouth, sneezing, runny nose
- Stomach pain, nausea or vomiting
Anaphylaxis — call 999 (UK) or 112 (EU) immediately
- Difficult or noisy breathing, wheeze, persistent cough
- Swelling of the tongue or tightness in the throat
- Dizziness, collapse, pale and floppy (young children)
- Use an adrenaline auto-injector (e.g. EpiPen) at once if prescribed, then call an ambulance even if symptoms improve
Allergy or intolerance? A true allergy involves the immune system and can escalate quickly; an intolerance (e.g. lactose intolerance) is unpleasant but not life-threatening. The symptoms overlap, so self-diagnosis is unreliable.
Getting tested: home-testing kits based on IgG are not diagnostically valid. If you suspect an allergy, ask a GP for referral to an allergy clinic for skin-prick or specific-IgE testing and a supervised food challenge where appropriate.