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Oral allergy syndrome (OAS) or pollen-food allergy syndrome (PFAS) is a type of allergy classified by a cluster of allergic reactions in the mouth and throat in response to eating certain (usually fresh) fruits, nuts, and vegetables. It typically develops in adults with hay fever. [1] It is not usually serious. [2]
Rentzos G, Lundberg V, Stotzer PO, Pullerits T, Telemo E. Intestinal allergic inflammation in birch pollen allergic patients in relation to pollen season, IgE sensitization profile and ...
A food allergy is an abnormal immune response to food.The symptoms of the allergic reaction may range from mild to severe. They may include itchiness, swelling of the tongue, vomiting, diarrhea, hives, trouble breathing, or low blood pressure.
Shellfish allergies are highly cross reactive, but its prevalence is much higher than that of fish allergy. Shellfish allergy is the leading cause of food allergy in U.S adults. [31] As of 2018 six allergens have been identified to prawn alone; along with crab, it is the major culprit of seafood anaphylaxis. [13]
Foods containing histamines — a chemical produced by the immune system when it is threatened by an allergen — can also aggravate allergies if people have an intolerance.
With a seeming uptick in food recalls at stores and restaurants nationwide linked to foodborne illnesses, here is what you need to know to stay safe.
Its use in food allergies is unclear. [6] Allergies are common. [10] In the developed world, about 20% of people are affected by allergic rhinitis, [15] food allergy affects 10% of adults and 8% of children, [16] and about 20% have or have had atopic dermatitis at some point in time. [17] Depending on the country, about 1–18% of people have ...
Halitosis (the medical term for bad breath) is usually caused by something in the mouth — whether it's leftover bits of food stuck in the teeth, a buildup of bacteria on the tongue or smoking ...