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1. www.mayoclinic.org › diseases-conditions › foodFood allergy - Symptoms and causes - Mayo Clinic

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   Aug 30, 2024 · Overview. Food allergy is an immune system reaction that happens soon after eating a certain food. Even a tiny amount of the allergy-causing food can trigger symptoms such as hives, swollen airways and digestive problems.

2. my.clevelandclinic.org › health › diseasesFood Allergies: Causes, Common Examples & Cures

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   Nov 11, 2024 · Food allergies are reactions your body has to a food that it mistakenly thinks is harmful. In trying to protect you, it can cause hives, swelling, an upset stomach and difficulty breathing. Food allergies can cause anaphylaxis, which can cause swelling in your airways or a severe drop in blood pressure.

3. www.canada.ca › food-allergiesFood allergies - Canada.ca

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   A food intolerance (such as lactose intolerance) is not a food allergy. It does not involve the immune system and is not life-threatening. Symptoms are likely to originate in the gastrointestinal system and are usually caused by an inability to digest or absorb certain foods or components of those foods.

4. foodallergycanada.ca › food-allergy-basics › foodWhat is food allergy?

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   A food allergy occurs when the body’s immune system sees a certain food as harmful and reacts by triggering an allergic reaction. There are two categories of food allergy: Immunoglobulin E (IgE) mediated – this is where symptoms result from the body’s immune system making antibodies called IgE.

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5. acaai.org › allergies › allergic-conditionsFood Allergies | Causes, Symptoms & Treatment | ACAAI Public ...

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   A food allergy reaction occurs when your immune system overreacts to a food or a substance in a food, identifying it as a danger and triggering a protective response. While allergies tend to run in families, it is impossible to predict whether a child will inherit a parent’s food allergy or whether siblings will have a similar condition.

6. www.webmd.com › allergies › food-allergy-intolerancesFood Allergy and Food Intolerance - Causes, Symptoms, Treatments

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   Mar 10, 2024 · Tests for Food Allergies. If your doctor thinks a specific food allergy is likely, you may get tests to measure your allergic response. One of these is a scratch puncture test.

7. People also ask

   What is a food allergy?

   • Food allergy is an immune system reaction that happens soon after eating a certain food. Even a tiny amount of the allergy-causing food can trigger symptoms such as hives, swollen airways and digestive problems. In some people, a food allergy can cause severe symptoms or even a life-threatening reaction known as anaphylaxis.

   Food allergy - Symptoms and causes - Mayo Clinic

   www.mayoclinic.org/diseases-conditions/food-allergy/symptoms-causes/syc-20355095

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   Do you have a food allergy?

   • Millions of Americans have an allergy of some kind. You probably know one of those people or are one yourself. Almost 6% of U.S. adults and children have a food allergy. Food allergy symptoms are most common in babies and children, but they can appear at any age. You can even develop an allergy to foods you have eaten for years with no problems.

   Food Allergies | Causes, Symptoms & Treatment | ACAAI Public Website

   acaai.org/allergies/allergic-conditions/food/

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   What causes food allergies?

   • Food allergies are caused by an immune system overreaction to a food the body has mistakenly deemed harmful. Experts aren't entirely sure why some people develop allergies and others don't. Environmental factors may play a role, as may family history.

   Food Allergies: Overview and More - Verywell Health

   www.verywellhealth.com/food-allergy-overview-4581969

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   What is the difference between food allergy and food intolerance?

   • A food allergy is caused by your immune system reacting to the food when it doesn't need to. With a food intolerance, your immune system isn't responsible. Most of the time it's a problem with digesting the food. For example, being allergic to milk is different from not being able to digest it properly because of lactose intolerance.

   Food Allergy and Food Intolerance - Causes, Symptoms, Treatments - W…

   www.webmd.com/allergies/food-allergy-intolerances

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   What is food allergy & how does it affect your body?

   • Learn what food allergy is and how it affects your body in this engaging and insightful video featuring a leading Canadian paediatric allergist and immunologist. A food allergy occurs when the body’s immune system sees a certain food as harmful and reacts by triggering an allergic reaction. There are two categories of food allergy:

   What is food allergy?

   foodallergycanada.ca/food-allergy-basics/food-allergies-101/what-are-food-allergies/

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8. www.verywellhealth.com › food-allergy-overview-4581969Food Allergies: Overview and More - Verywell Health

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   Apr 25, 2023 · Food allergies are unlikely to cause acne, however, acne may be related to a food intolerance or sensitivity. A food intolerance is a condition in which the body has a reaction to a certain food, but the mechanism of this reaction is unknown and is not thought to be related to IgE that is involved in food allergies.