You could be allergic to the protein in eggs but have no issues with chicken. It seems reasonable that if a person is allergic to the proteins in cows’ milk, they would also be allergic to other cow byproducts. If a person is allergic to the proteins in cows’ milk, they are likely to have cross allergies with milk from other mammals, including sheep, goats, deer, buffalo, and more. Swelling of the throat, lips, or tongueĬommon Instances of Allergy Cross-Reactivity Mammal Milk.PFAS is also known as Oral Allergy Syndrome (OAS) and can present as: If you eat a food that shares protein properties with pollen you are allergic to, you may feel an allergic reaction in your lips, tongue, throat, or the inside of your cheeks. The allergic reaction caused by cross-reactivity is called Pollen Food Allergy Syndrome (PFAS). This means that a protein in grass pollen can be similar to a protein in tomatoes, causing you to have an allergic reaction to both and resulting in a cross-reactive allergy. If you are allergic to grass pollen, you may also experience an allergic reaction when eating melons, tomatoes, or oranges.
These protein similarities typically exist between pollen and food substances. What Is Allergy Cross-Reactivity?Ī cross-reactive allergic reaction happens when one or more substances have similar proteins. Let’s discover what cross-reactive food allergies are, how they may affect the foods you can eat, and how you can determine which foods to avoid. People with known allergies can usually avoid foods that contain their allergens, but many may not know about food allergy cross-reactivity and the surprise allergic reactions they can cause. A food allergy can be complex and sometimes life-threatening.
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