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Milk Allergy IgE Blood Test

The milk allergy IgE blood test measures the amount of allergen-specific IgE antibodies in the blood to detect an allergy to cow's milk.

Test Code: 602453

Also Known As: Cow's Milk

Methodology: Thermo Fisher ImmunoCAP

Preparation: No special preparation required.

Test Results: 3-5 days. May take longer based on weather, holiday or lab delays.

Test Code: 2802

Also Known As: Cow's Milk

Methodology: Immunoassay (IA)

Preparation: No special preparation required.

Test Results: 3-5 days. May take longer based on weather, holiday or lab delays.


Order a milk allergy IgE blood test to detect an allergy to cow's milk. This test measures the amount of allergen-specific antibodies in a blood sample.


Milk is known for being a commonly encountered allergy, the culprit being the proteins in the milk. While a milk allergy mostly occurs in young children, it can emerge at any age. An allergic reaction may even be caused by foods containing milk that have been consumed previously without any problems.


Milk allergy should not be confused with lactose intolerance, which is not an allergic reaction and does not involve the immune system. Lactose intolerance is when the body can not digest lactose, the sugar present in dairy products. Symptoms from lactose intolerance include gas, stomach pain, and diarrhea. When an individual has a milk allergy, the symptoms affect more than just the digestive tract.


Allergic individuals should steer clear of milk, dairy products, and food and ingredients containing milk to prevent an allergic reaction. Milk is present in so many foods it can be challenging to avoid. Individuals needing to remove milk from their diet should pay close attention to the items in the following categories. 


The items listed in the below categories are common examples only, and therefore do not include all foods, products, or ingredients containing milk.


Dairy Products to Avoid

  • Cheese
  • Cheese sauces
  • Cottage cheese
  • Butter and butterfat
  • Cream
  • Sour cream
  • Custard
  • Milk
  • Buttermilk
  • Evaporated milk
  • Powdered milk
  • Ice cream
  • Yogurt
  • Pudding

Foods Commonly Known to Have Milk in Them

  • White sauces
  • Au gratin dishes
  • Cookies
  • Bread
  • Crackers
  • Cakes
  • Cereals
  • Cake mix
  • Chocolate
  • Chewing gum
  • Cream candy
  • Donuts
  • Coffee creamers
  • Malted milk
  • Creamed or scalloped foods
  • Margarine
  • Nougat, commonly found in candy
  • Mashed potatoes
  • Salad dressings
  • Canned and processed meats, including cold cuts and deli meats
  • Sherbet

Ingredients With Milk

  • Artificial butter
  • Cheese flavor
  • Caseinates
  • Casein
  • Ghee
  • Curd
  • Rennet
  • Hydrolysates
  • Lactalbumin, lactalbumin phosphate
  • Whey
  • Whey products
  • Lactose, lactoglobulin, lactoferrin, lactulose
  • Rennet

An allergy to milk triggers a reaction in an individual's immune system. The body views certain substances as toxic and produces IgE antibodies to these contaminants. These antibodies cause histamine to be released, which will cause the symptoms of an allergic reaction.


Allergy symptoms vary from one individual to the next ranging from mild to severe reactions, which can be experienced within minutes to hours after exposure or consumption. Common symptoms of a milk allergy may include one or more of the following symptoms:


  • Diarrhea
  • Abdominal cramps
  • Vomiting
  • Hives
  • Itching or tingling around the mouth or lips
  • Coughing
  • Shortness of breath
  • Swelling of the lips, tongue, or throat
  • Watery eyes
  • Runny nose
  • Wheezing

Individuals allergic to cow's milk should also use caution when consuming milk from goats, sheep, and buffalo. The proteins in milk from these mammals are similar to those found in cow's milk and may not be tolerable.

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