Causes and Symptoms

Published on Thursday, 31 May 2012 13:26


A dairy allergy is caused when the immune system treats proteins in milk as a threat to the body. It signals the release of antibodies to attack the protein.  After the initial consumption the body becomes sensitized to those specific proteins, and releases histamine and other chemicals with each subsequent exposure.  The release of these chemicals causes the allergic symptoms.



  • Dairy allergy symptoms:
  • Wheezing
  • Hives
  • Skin rash (note: eczema is a common skin condition often associated with food allergies, see your doctor for proper diagnosis)
  • Diarrhea
  • Loose stools
  • Runny nose
  • Cramps
  • Vomiting
  • Coughing
  • Asthma
  • Anaphylaxis: when the throat swells making breathing difficult because the airways constrict.  Other symptoms may include a rapid pulse, dizziness, shock, and lightheadedness.  This is life threatening and needs to be treated with a shot of epinephrine (adrenaline). The person should also be taken to the emergency room.

Lactose intolerance  (also called dairy intolerance or milk intolerance ) symptoms:

  • Diarrhea
  • Bloating
  • Gas 
  • Stomach cramping