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Doctor insights on: What Is A Food Allergy

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What is a food allergy?

What is a food allergy?

Reaction to a food.: People can become allergic to many substances including certain foods. Some foods are more likely, such as milk, egg, wheat, soybean, shellfish, peanut, or nuts. Reactions can range from rash and itching to anaphylactic shock. ...Read more

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Dr. John Chiu
2,592 Doctors shared insights

Allergies (Definition)

Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more


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What is a food allergy?

What is a food allergy?

Immunologic response: A food allergy is a specific immunologic response that your body has to a food that can lead to various symptoms. This is different from a food intolerance, such as excess gas, nausea or diarrhea. ...Read more

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What type of food allergy test is more accurate?

What type of food allergy test is more accurate?

Neither: Skin testing and blood test (serum specific ige) have different sensitivities and specificities. Either or both must be interpretted in light of the clinical picture. Frequently, patients with positive tests are not allergic and an oral challenge under the supervision of a board certified allergist familiar with oral challenges and treatment of anaphylaxis is needed. ...Read more

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What does a food allergy from strawberries look like on legs?

Please see below: Strawberry allergy would usually occur within an hour or two every time you eat strawberry. You can have rash around the mouth or generalized hives, it would be very unusual to have rash on legs only. ...Read more

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Dr. How to test for food allergies? How does allergy testing work in general? And what about non food allergy testing?

Dr. How to test for food allergies? How does allergy testing work in general? And what about non food allergy testing?

Two kinds: Of allergy testing - blood test for antibody levels and skin prick test (a small amount of the substance placed on a sharp tip that is pressed against the skin). The skin test is more likely to correlate with real allergy, however remember w both methods it can only suggest a possible allergy. Would leave interpretation up to ur allergist. ...Read more

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Could you tell me what are some common food allergies?

Could you tell me what are some common food allergies?

Allergy/ intolerance: Top contenders include gluten, dairy, soy, corn, citrus, eggs, beef and peanuts. Processed foods and additives such as aspartame can also trigger reactions. In addition, your body needs beneficial bacteria (probiotics) that actually train the immune system how to respond to allergens. Sometimes people have more than 1 food allergy, so pay close attention. Good luck! ...Read more

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What's the difference between food allergy and food intolerance?

What's the difference between food allergy and food intolerance?

Mechanism: Food allergies are mediated by the ige antibody and it takes only a small amount to lead to a severe even anaphylactic allergic reaction and rarely death. Food intolerance is GI symptoms of bloating, gassy, crampy belly pain and diarrhea after eating usually larger amounts of a food. Intolerances are more common (like lactose intolerance) and are not mediated by ige antibody and not life ending. ...Read more

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What is the best food allergy test?

What is the best food allergy test?

Skin Prick Testing: Food allergies are diagnosed first by getting a detailed clinical history of reaction. If history is concerning then skin prick testing and/or serum IgE testing to concerning foods will be drawn. Skin prick testing usually done first followed by serum testing to follow sensitivity over time. Prick to prick testing with actual food is also helpful to help clarify risk. See Allergist for details. ...Read more

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Help! Exactly what is the raw food allergy called?

Help! Exactly what is the raw food allergy called?

Depends: The most common symptom would be no symptoms at all. Metastatic melanoma is often picked up on imaging. Symptoms can occur depending on the location of the lesions. Neurological symptoms for brain mets, bleeding or obstruction for GI mets, possible pulmonary symptoms for lung mets. ...Read more

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How do I know exactly what is the raw food allergy called?

How do I know exactly what is the raw food allergy called?

Which one: Its a vague question. Be specific you cannot be allergic to all food raw or cooked. ...Read more

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What is the best food allergy, sensitivity or intolerance test?

Avoidance &challenge: Every test out there is imperfect. This is because there are many different mechanisms of food sensitivities- some mediated by igg, e, a & m antibodies, some by lymphocytes, some by inability to digest (lactose), some by inability to metabolize (nightshades) and there aren't tests for all of these. Avoiding suspect foods for 5 days to 1 month & challenging to see if you react is still the best test! ...Read more

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What have food allergies got to do with not eating a healthy diet?

What have food allergies got to do with not eating a healthy diet?

Restrics nutrients: Patients allergic to certain foods must insure that they are getting replacement calories, proteins, vitamins and minerals in their diet. For example, children with milk allergyneed to replace the protein and calcium. Confirmation of allergy by challenge is an option for many people, if the risk for anaphylaxis is low. Consultation with a nutritionist may be helpful. ...Read more

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What are signs of food allergies in toddlers other than the obvious signs such as breaking out in hives or having trouble breathing?

What are signs of food allergies in toddlers other than the obvious signs such as breaking out in hives or having trouble breathing?

Stomach symptoms!: Other than obvious signs such as breaking out in hives and having trouble breathing, which occur in rare cases, the frequent symptoms of food allergy are the less serious cases of vomiting, abdominal cramps, diarrhea, and exacerbation of eczema. ...Read more

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I think I may have a food allergy (eyes and face swollen, nose and eyes runny) - I drink 3 - 4 Allergex a day but minor relief. What could this be? Food allergy?

I think I may have a food allergy (eyes and face swollen, nose and eyes runny) - I drink 3 - 4 Allergex a day but minor relief. What could this be? Food allergy?

Possibly correct: The symptoms could definitely fit with an allergy. Inhalant allergens or food allergens could be behind your condition. High doses of antihistamines could be harmful in the absence of a clear diagnosis. I would suggest you consult your doctor for a clinical evaluation and possible allergy test. ...Read more

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What causes food allergies? I keep developing food allergies, and my doctors have no explanations. I also have IBS-C. Is Leaky Gut a real disease? Could it be causing my problems? (all I eat is fiber)

What causes food allergies? I keep developing food allergies, and my doctors have no explanations. I also have IBS-C. Is Leaky Gut a real disease? Could it be causing my problems? (all I eat is fiber)

First, you need to: Make sure what you are experiencing are true allergies. Many people have food intolerances--nausea, pain, diarrhea--but often food allergy also involves hives, itchy skin, shortness of breath indicating an activation of your immunologic system. Having IBS leads me to favor the food intolerance diagnosis. Leaky gut, as you suggest, isn't a recognized diagnosis.Fiber is good, but more balance needed ...Read more

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What is the most common food allergy?

What is the most common food allergy?

There are 8: Between 50% and 90% of all severe allergic reactions to foods are caused by only eight foods. The most common food allergies are: milk, eggs, peanuts, tree nuts, soy, wheat, fish and shellfish. ...Read more

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What are the symptoms of food allergy?

What are the symptoms of food allergy?

Can vary: Ige mediated food allergy symptoms may include hives, swelling, vomiting, abdominal pain, difficulty breathing, and even drop in blood pressure. Symptoms typically occur within 2 hours of food ingestion. For more info go to foodallergy. Org. ...Read more

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Dr. Michael Zacharisen
588 Doctors shared insights

Food Allergy (Definition)

Results in a response like diarrhea, vomiting, hives, or anaphylaxis when certain food is eaten. Can also be more subtle and lead to chronic congestion, headaches, ...Read more


Dr. Heidi Fowler
3,491 Doctors shared insights

Nutrition (Definition)

Nutrition is the synergistic combination of nutrients found in food and water that allows the human body to perform all essential ...Read more