Immediate Onset
Food Allergy (IgE)
Cause
The immune system has mistaken the common substances for invaders and causes series of inflammation
Mediators
IgE antibodies
Onset of symptoms
Within minutes or up to two hours
Symptoms
Symptoms are acute and apparent (e.g. skin rashes, runny nose, sneezing) Relatively easy to track the culprits
Delayed Onset
Food Sensitivity (IgG)
Cause
The immune system has mistaken the common substances for invaders and causes series of inflammation
Mediators
IgG antibodies
Onset of symptoms
Within hours to days
Symptoms
Symptoms are delayed and subtle (e.g. bloating, migraine, tiredness) Hard to track the culprits
- 1. Excluding food unnecessarily can lead to severe malnutrition
- 2. Inappropriate re-eating of food may also cause serious adverse reactions and even death