To recognize if you have a Casein allergy, you need to understand the symptoms that specifically point to a Casein allergy, then identify when and why these symptoms occur. Here are the steps to do it:

Understand Casein Allergy Symptoms

• Swelling of the lips, mouth, tongue, face, or throat: This is a common sign of food allergies, including Casein.
• Skin reactions: This can include hives, redness, or rashes.
• Digestive symptoms: Symptoms include abdominal cramps, diarrhea, nausea, or vomiting, especially shortly after consuming milk or dairy products.
• Respiratory issues: Symptoms like wheezing, nasal congestion, coughing, or a shortness of breath could all point to a Casein allergy. Severe reactions may result in anaphylaxis.

Observe When Symptoms Occur

• Time it: Symptoms of a Casein allergy usually show up soon after consuming dairy products. This can be within minutes, or up to a few hours.
• What did you eat?: Pay close attention to when you experience these symptoms. Do they always happen after you consume dairy products?

See An Allergist

• Conduct a skin test: An allergist may perform a skin prick test, which involves introducing a tiny amount of Casein onto your skin using a small needle.
• Blood test: Your allergist might order a blood test to check for the presence of certain antibodies. High levels of these antibodies may indicate that you have a Casein allergy.