From the RAF Medical requirements page;
All Congenital, chromosonal and genetic disorders
• Severe allergic reactions and/or anaphylaxis
• A need to carry adrenaline injections (EPIPEN, etc)
• Confirmed food allergy
• Any history of a Type 1 allergic reaction regardless of cause
• Latex allergy
• Specific vaccine allergy (including tetanus allergy)
• Gluten sensitivity (Coeliac disease),
• Any confirmed food intolerance which results in symptoms
• Chronic fatigue syndrome or associated disorders