Allergy to Soy Lecithin in a Child

Allergy to Soy Lecithin in a Child


A member of the legume household, soy is a common active ingredient in baby formulas and numerous other processed foods. In children, soy is among the most common food allergens. Normally, allergies first appear in infants and children under 3, and the majority of them outgrow the allergy by age 10.

A soy allergic reaction occurs when the body’s body immune system errors the harmless proteins found in soy for intruders and develops antibodies versus them. The next time a soy product is consumed, the body immune system will launch chemicals such as histamines to “protect” the body. The release of these chemicals causes an allergy.

Soy Allergic reaction Symptoms

  • Rash or hives (urticaria).
  • Itching in the mouth.
  • Nausea, vomiting or diarrhea.
  • Stuffy or runny nose.
  • Wheezing or other asthma symptoms.

For additional information on soy allergy symptoms click on this link.

Rarely, a soy allergy will cause anaphylaxis, a possibly deadly response in which the throat swells up, blood pressure drops and breathing is impaired. Immediate treatment with epinephrine, using an auto-injector, can reverse these symptoms.

Typical Triggers of a Soy Allergy

  • Soy and soy products (including some baby solutions), soy milk and soy sauce.

Soy Allergic reaction Management

  • Avoid items containing soy.
  • Read labels thoroughly.


Symptoms of a soy allergy consist of:

  • Rash or hives (urticaria).
  • Itching in the mouth.
  • Nausea, vomiting or diarrhea.
  • Stuffy or runny nose.
  • Wheezing or other asthma symptoms.

Hardly ever, a soy allergic reaction will cause anaphylaxis, a possibly dangerous reaction that impairs breathing, causes an abrupt drop in blood pressure and can send the body into shock. The only medication that can treat anaphylaxis is epinephrine (adrenaline), administered through an auto-injector as quickly as symptoms are apparent.

If you or your child experiences any of these symptoms after eating soybeans or an item containing soy, see an allergist.

Allergy to Soy Lecithin in a Child


The allergist will take a history and perform a physical examination. You might be asked to keep a food journal, keeping in mind not just what is consumed, however what symptoms happen after food is taken in.

In addition, the allergist may advise a skin-prick test or a blood test, both of which look for the presence of immunoglobulin E (IgE) antibodies to soy protein.

In the skin-prick test, a small amount of a liquid including soy protein is placed on the back or forearm, which is then pricked with a little, sterilized probe to permit the liquid to leak into the skin. The existence within 15 to 20 minutes of a raised, reddish spot can show an allergic reaction. In the blood test, a blood sample is sent to a lab to test for the presence of IgE antibodies; the result is reported as a mathematical worth.

If these tests aren’t conclusive, the specialist may purchase an oral food difficulty. Under medical guidance, the person being checked will eat percentages of an item containing soy to see whether symptoms establish. Since of the possibility that a reaction could be severe, this test is performed in your specialist’s office or at a food difficulty center with emergency equipment and medication on hand.

Management and Treatment

As with other food allergies, the best method to manage a soy allergy is to prevent consuming products which contain soy.

Soy is among the 8 allergens that fall under the labeling requirements of the Food Allergen Identifying and Customer Defense Act of 2004. This indicates that producers of packaged food products sold in the United States and including soy or a soy-based active ingredient must state, in clear language, the presence of soy in the product.

Soy or derivatives of soy are found in some infant formulas, canned broths, soups, canned tuna, processed meats and hotdogs, energy bars, baked products and numerous other processed foods. Soy likewise is a typical component in Asian food and is sometimes contained in chicken nuggets, low-fat peanut butter, alternative nut butters and even vodka. Individuals with a soy allergic reaction need to not consume soy milk, soy yogurt or ice cream, edamame, miso, tempeh and tofu.

Many people allergic to soy can safely consume extremely refined soybean oil. Ask your specialist about avoiding this active ingredient. Likewise, beware when eating foods that have actually been fried in any kind of oil, due to the risk of cross-contact: If a soy-containing food is fried in oil, that oil will absorb certain soy proteins; if a various food that does not include soy is then fried in that same oil, consuming it might set off an allergic reaction.

People with a soy allergic reaction often can eat foods that contain soy lecithin– a mixture of fatty compounds originated from soybean processing. If you have a soy allergy, ask your allergist if soy lecithin is safe for you.

Individuals with a soy allergy often question if they should also prevent peanuts– another bean that is a typical allergic reaction trigger. The response is “not always.” They are separate foods and their irritant triggers are unrelated. Soybeans likewise are unrelated to tree nuts such as almonds, walnuts and cashews. Those adverse soy are no more likely to be allergic to tree nuts or peanuts than they would be to another food.


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