Description

Immunoglobulin E (IgE) is an antibody that the body produces in response to milk proteins that it identifies as harmful. When someone with a milk allergy comes into contact with milk again, the IgE antibodies bind to mast cells in the body and trigger the release of histamine, which causes allergic symptoms. 

There are two types of milk allergies, depending on how the immune system reacts:

• IgE mediated – This type of allergy causes immediate symptoms, such as hives, swelling, or breathing difficulties, that can occur within minutes of consuming milk. In severe cases, this can lead to anaphylaxis, a life-threatening allergic reaction that requires immediate medical help. 

• Non-IgE mediated – This type of allergy causes delayed symptoms, such as colic, eczema, or unusual stools, that can take up to 72 hours to develop. Symptoms can be similar to those of an IgE-mediated allergy, but they are often mistaken for lactose intolerance or milk intolerance. 

Fasting not required.