Doctor insights on:
What Is A Food Allergy
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
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 moreSee 6 more doctor answers
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
What type of food allergy shows as redness around the corners of the mouth? I have had this for years and recently went on a fast and it hasn't showed up yet, so I'm guessing it has to be a food allergy.
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 moreSee 1 more doctor answer
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
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 moreSee 1 more doctor answer
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 moreSee 2 more doctor answers
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
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 moreSee 1 more doctor answer
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 moreSee 1 more doctor answer
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
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 moreSee 1 more doctor answer
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