Soy Allergy IgE Blood Test

What is the purpose of this test?

Order this Soy Allergy IgE Blood Test to measure the IgE antibody levels in the blood to screen for an allergy to soybeans. Soybeans are among the eight most common food allergens in the United States. Like peanuts, soybeans are legumes and contain similar proteins to tree nuts. Therefore, individuals allergic to soybeans may also be allergic to peanuts, and tree nuts, like almonds, pecans, walnuts, hazelnuts, Brazil nuts, and cashews. Most food allergies develop in childhood and may be outgrown over time, but many suffer from lifelong allergies, including soybeans. 

Consuming soybeans or soy products may activate an individual's immune system response. The key allergens in soybeans are the proteins: Gly m 5, Gly m 6, and Gly m 4. Once ingested, the immune system will view these proteins as harmful and produce antibodies to combat these invaders. Unfortunately, these antibodies cause a chemical known as histamine to be released, triggering an allergic reaction. 

When should I order a Soy Allergy IgE Blood Test?

Individuals may order this test panel if they have experienced symptoms associated with a soy allergy. An allergic reaction to soy may range from mild to severe, depending on the individual. An individual may experience allergic reactions minutes to a few hours after exposure. An individual allergic to soy may experience the following symptoms:

• Tingling sensation in or around the mouth
• Swelling 
• Abdominal pain
• Nausea or vomiting
• Diarrhea
• Itching, hives, or eczema
• Congestion
• Trouble breathing or wheezing
• Lightheadedness

A severe, possibly life-threatening allergic reaction known as anaphylaxis may occur in some cases. An anaphylactic response requires immediate medical attention. Signs or symptoms of anaphylaxis may include:

• Rapid or increased pulse
• Swollen throat or lump, making it difficult to breathe
• Low blood pressure
• Extreme dizziness or loss of consciousness

What food products should I avoid if I have a soybean allergy?

Individuals allergic to soy should avoid consuming the following foods:

• Asian cuisine
• Edamame
• Grains prepared with soy (cereals, bread, chips, pasta, and rice)
• Miso
• Other soy-based products (cheese, flour, ice cream, milk, yogurt, fiber)
• Soy oil
• Soy sauce
• Soya
• Soybean (curds or granules)
• Tamari
• Tempeh
• Tofu