A soy allergy is when your body reacts to soy protein. Soy protein is a product of soybeans and it’s in many foods. If you are allergic to soy, your immune system will react anytime you come in contact with it. Symptoms usually happen within minutes or hours. They may include: If you have more serious allergy symptoms, you may have a severe reaction called anaphylaxis. It needs immediate care. Signs of anaphylaxis include: If you or someone you know has signs of anaphylaxis, call 911. It’s a medical emergency. Allergies happen when your immune system overreacts to something. If you have a soy allergy, soy proteins
trigger your immune system to react. This will happen anytime your immune system is exposed to this protein. Part of this reaction is a release of chemicals including histamines. These chemicals cause your symptoms. Some things make soy allergy more likely. They include: If you think you have a soy allergy, your doctor can test for it. They may recommend these tests: If you have a soy allergy, you need to do more than skip soy sauce and tofu. Soybeans are a big part of processed foods, too. Do these things to protect yourself or your child from an allergic reaction:
Soy foods to stay away from If you have a soy allergy, do not eat these foods:
Foods that may contain soy These foods may have soy:
Other names that may mean soy ingredients You may want to skip any products with these names on their ingredient lists.
If you see an ingredient you aren’t familiar with, follow a simple rule: When in doubt, look it up. You can email the maker of the product if you're still not sure about something. What Is Soy Allergy?Soy allergy is more common in infants and young children than in older children and approximately 0.4% of infants in the U.S. have soy allergy.1 Most children eventually outgrow their allergy to soy, although some individuals remain allergic to soy throughout their lives. When a person with a soy allergy is exposed to soy, proteins in the soy bind to specific IgE antibodies made by the person’s immune system. This triggers the person’s immune defenses, leading to reaction symptoms that can be mild or very severe. Soybeans are a member of the legume family. Beans, peas, lentils and peanuts are also legumes. While it is rare for peanut allergic patients to react to soy, the reverse is not true. One study found that up to 88% of soy-allergic patients had peanut allergy or were significantly sensitized to peanut. Individuals with soy allergy were more likely to be allergic or sensitized to major allergens including peanuts, tree nuts, egg, milk and sesame than to non-peanut legumes such as beans, peas and lentils.1
1Savage JH, Kaeding AJ, Matsui EC, Wood RA. The natural history of soy allergy. J Allergy Clin Immunol, 2010;125:683-86. What foods contain soy allergies?If you have a soy allergy, do not eat these foods:. Edamame.. Natto.. Soy sauce and shoyu sauce.. Soy-based fiber, flour, grits, nuts, or sprouts.. Soy-based milk, yogurt, ice cream, or cheese.. Soy protein.. Tamari.. What foods is soy hidden in?Soy is especially tricky to avoid because it is often found in unexpected places such as in baked goods, cereals, crackers, infant formula, canned tuna, prepared meats (like sausage and lunch meats), sauces and soups. In fact, soy is found in an estimated 60% of processed foods!
Can you eat eggs with a soy allergy?Because soy protein is found in commercial eggs, many people think they are allergic to eggs. However, they are probably not actually allergic to eggs but simply the soy protein found inside the eggs.
What are signs of a soy allergy?Symptoms of a soy allergy may be mild or severe, and can include:. Hives, itching or eczema.. Tingling sensation in the mouth.. Swelling of lips, face, tongue, throat or other parts of the body.. Wheezing, runny nose or trouble breathing.. Abdominal pain, diarrhea, nausea or vomiting.. Dizziness, lightheadedness or fainting.. |
Foods to avoid with soy allergy
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