Soy allergy

Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD medical weight loss NYC and sleep center NYC

Soy allergy
Synonyms	N/A
Pronounce	N/A
Specialty	N/A
Symptoms	Hives, itching, swelling, abdominal pain, diarrhea, nausea, anaphylaxis
Complications	N/A
Onset	Minutes to hours after exposure
Duration	Variable, can be chronic with repeated exposure
Types	N/A
Causes	Immune system reaction to soy protein
Risks	Family history of allergies, atopic dermatitis
Diagnosis	Skin prick test, blood test for IgE antibodies
Differential diagnosis	Lactose intolerance, celiac disease, other food allergies
Prevention	Avoidance of soy-containing products
Treatment	Antihistamines, epinephrine for severe reactions
Medication	N/A
Prognosis	N/A
Frequency	Estimated 0.4% of children, less common in adults
Deaths	N/A

Soymilk can and glass

Signs and symptoms of anaphylaxis

Hives on back

EpiPen

Edamame

Soy Allergy is a type of food allergy that is triggered by the consumption of soy products. It is one of the more common food allergies, especially among babies and children.

Symptoms

The symptoms of a soy allergy can range from mild to severe and can include:

• Hives or skin rash
• Itching in the mouth
• Difficulty breathing
• Abdominal pain
• Diarrhea
• Nausea or vomiting
• Dizziness
• Anaphylaxis

Causes

A soy allergy occurs when the body's immune system mistakenly identifies soy as harmful and creates antibodies against it. When soy is consumed, the immune system releases chemicals such as histamine, which cause allergy symptoms.

Diagnosis

A soy allergy is typically diagnosed through a combination of a patient history, skin prick test, and blood test. In some cases, an oral food challenge may be conducted under medical supervision.

Treatment

The primary treatment for a soy allergy is avoidance of soy products. This can be challenging, as soy is found in many processed foods. In cases of accidental ingestion, antihistamines may be used to relieve symptoms. In severe cases, such as anaphylaxis, emergency treatment with epinephrine is required.

Additional images

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  Tempeh

• 

  Textured vegetable protein

• 

  US Allergen Information Example

See Also

• Food Allergy
• Anaphylaxis
• Epinephrine

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