A food allergy is an adverse immune response to a food protein, with a food allergy the body reacts as though that particular food product is harmful. As a result, the body's immune system creates antibodies to fight the food allergen, the substance in the food that triggers the allergy. The food that causes allergies are Milk, Egg, Soy, Fish, Nuts, Legumes, Fruits, legumes, Potatoes etc.
• Type I - results in anaphylaxis within 60 minutes of eating the food. The blood vessels dilate and the nose runs. The anaphylaxis can be life threatening.
• Type II - causes similar symptoms to type I.
• Type III - occurs some hours after eating and causes skin and bronchi (lung) irritation.
• Type IV - it is a delayed reaction that occurs 24 to 48 hours after eating the food. Generally, the more of the food you eat, the worse your symptoms become.