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Doctor insights on: Igg Food Allergies

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Chinese food triggering someone's cashew allergy?

Chinese food triggering someone's cashew allergy?

Possible: Some chinese dishes contain cashews. The other possibility is that there was cashew "contamination" in your dish. ...Read more

Dr. John Chiu
2,648 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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Are food allergies genetic?

Are food allergies genetic?

Loaded Question: To some degree they may be. For example in peanut allergic children subsequent sibs are probably at a higher risk than the general population for peanut allergy. However, the genetics of allergic disease is very complex and one generally passes on the ability to be allergic rather than a specific allergy. ...Read more

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Can allergic rhinitis be linked to food intolerances or food allergy?

Can allergic rhinitis be linked to food intolerances or food allergy?

YES: On some occasions I have found kids whose only confirmed allergies were to foods.Removal from their diet resulted in a clearing of airway problems. ...Read more

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How are food allergies tested?

How are food allergies tested?

Oral challenge: History trumps skin & blood testing for food allergy. With a history of a reaction like hives, difficulty swallowing, throat tickle, vomiting, asthma or anaphylaxis minutes to hours after eating a food negative skin & blood tests are insufficient to rule-out allergy. A positive test is usually convincing. Mostly we do unblinded challenges in the office reserving double-blind for ambiguous cases. ...Read more

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Has anybody else been tested for IgG antibody food allergies? I thought allergies were ige?

Has anybody else been tested for IgG antibody food allergies?  I thought allergies were ige?

Different types: There are actually 5 (and probably more) antibody responses to infection or allergens: igg, igm, iga, igd, and ige. Our IgM and igg antibodies are usually produced in response to infection; ige antibodies usually produced in response to allergic reactions. ...Read more

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Can environmental allergies (food, pollen, dust mites, contrast dye, penicillin) cause a high positive ANA?

Can environmental allergies (food, pollen, dust mites, contrast dye, penicillin) cause a high positive ANA?

I have seen this: While the +ANA is suggestive of SLE there can be other causes - other connective tissue disease, autoimmune thyroid disease, auto immune hepatitis to name some. I have seen a lot of people with + ANAs who only have as another problem a history of allergic reactions and I am convinced that thee allergic reactions can cause a + ANA. Everyone can have very low titters (amount) of ANA. ...Read more

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Is sorbic acid allergy related to other food allergens?

Is sorbic acid allergy related to other food allergens?

Potassium sorbate: Sorbic acid can cross-react with potassium sorbate. It is a rare cause of contact dermatitis (a rash) or contact urticarial (hives). ...Read more

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How are food allergy and food intolerance different?

Diff erent way fo: Allergy means you get hives, runny nose , may be troule breathing within min to 2 hrs and need to avoid and treatment, intolerance more like upset stomach, gassy stomach ache, e.G milk allergy avoid for 2 yrs might out grow, lactose intolerance forget about milk. ...Read more

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Food allergies- could it be from proteins in food that cause food allergies?

Food allergies- could it be from proteins in food that cause food allergies?

Yes: It usually is a protein in the food that causes the food allergies. Protein, meaning the specific part of a food that triggers your immune system. For example: milk allergy may be because of the casein protein in the milk. There also may be allergies to the carbohydrate unit of the meats but that is rare and presents differently. Best be evaluated by an allergist to help you clarify your allergy. ...Read more

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How are infant food allergies daignosed?

How are infant food allergies daignosed?

Allergy test: We allergists prefer a prick skin test and we do it in the office and it is relatively painless. There are also blood tests, but depending on the lab you go to and the technique they use, some are not that reliable. ...Read more

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Do hives from food allergies always mean anaphylactic reaction?

Do hives from food allergies always mean anaphylactic reaction?

Not always: Hives as a symptom along the continuium of allergic reactions. The concern is that the next time they are exposed to this allergen they may react more severely (anaphylaxis). This is definitely something you want to see your child's doctor about. ...Read more

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What triggers a food intolerance?

What triggers a food intolerance?

Multiple causes: Some of them are: absence of an enzyme needed to fully digest a food (lactose intolerance). Irritable bowel syndrome. Food poisoning. Toxins. Sensitivity to food additives. Recurring stress or psychological factors. Celiac disease , etc. ...Read more

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I'm a chronic hives sufferer w/multiple med allergies, too. Tested negative for food allergies, but should I avoid high allergy foods (peanut, fish)?

No: You need to see an allergist to help you sort out your medication issues. There is no link between food and drug allergies. ...Read more

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Looking for nut allergies symptoms, eg, cashew allergy?

Looking for nut allergies symptoms, eg, cashew allergy?

Varies: Allergic reactions varies with individuals.Some can consume cashews, while to others they are toxic.Reactions can be mild or severe. Mild reactions include nausea , vomiting, diarrhea. Skin rash and itching on the skin.The eyes , roof of mouth and throat may itch.Severe reactions include difficulty breathing, swelling to face and throat.The most dangerous is anaphylaxis.This can be fatal ...Read more

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Do food allergies affect the fodmap elimination diet?

Do food allergies affect the fodmap elimination diet?

Not very much: The fodmap elimination diet is designed for people with irritable bowel syndrome (ibs). It's goal is to reduce sugars and short-chain carbohydrates in the diet. The major overlap is with wheat as most of the other foods avoided in this diet are fruit & vegetables that are not common food allergy offenders. ...Read more

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Are allergy tests for food sensitivites and/or allergies fairly accurate?

Yes: Allergy testing is fairly accurate for allergies due to ige mediated allergic reactions. Others types of immune and non-immune reactions are not detected by this type of testing. In addition the results of testing need to correlate with (match) the clinical picture and in some instances food and/or drug challenges will need to be dome. See an allergist for evaluation and interpretation of results. ...Read more

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Allergic dermatitis and food allergies are closely related?

Allergic dermatitis and food allergies are closely related?

Allergic contact: Allergic contact dermatitis occurs when your skin comes in contact with substances that your skin is sensitive or allergic to. The reaction usually appears within 24-48 hours after exposure to the allergen. Symptoms that are common include redness, itching and swelling. Sometimes blistering and weeping of the skin also develop. What you are allergic to is determined by your genes, not foods. ...Read more

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20 asthma severe dust allergy pet fur feather some food allergy recurrent sinus upper respiratory infections pale low energy swollen glands nausea?

20 asthma severe dust allergy pet fur feather some food allergy recurrent sinus upper respiratory infections pale low energy swollen glands nausea?

Lots of allergies : There are many complaints and symptoms - many of which may be related to your allergies. Go see an allergist and work through your symptoms. ...Read more

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Dr. Heidi Fowler
3,545 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


Dr. Michael Zacharisen
600 doctors shared insights

Food Allergy (Definition)

An immune system reaction that occurs soon after eating a certain food. This often results in ...Read more