A good number of people experience an uncomfortable itch in their mouth after eating vegetables, or fresh fruits like apples or melons. Many people believe that feeling is simply a food intolerance.
But it could be a sign of Oral Allergy Syndrome (OAS). This is a condition that connects your favorite healthy snacks to seasonal pollen allergies. The type of condition mostly affects people who already have pollen allergies. OAS manifests itself as an itch, tingle, or swell in the mouth and throat, immediately after eating trigger food.
Food Allergies vs Food Intolerance
Even though people often mix then up, food allergies and food intolerances are two different things. Allergies are caused by the immune system. When you eat something you’re allergic to, your immune system becomes defensive, taking the food you eat as a threat, even though they’re not. This can cause anything from a small reaction, like itching, to something serious, like trouble breathing.
Food intolerances, on the other hand, are more about the digestive system. For example, if someone can’t digest milk because they don’t have enough lactase enzymes, they’re lactose intolerant. OAS is a type of allergy because it has to do with the immune system reacting to proteins in food that resembles pollen.
Common Allergens
There are certain foods that usually trigger oral allergic syndrome because of the proteins that resemble pollen.
- If you’re allergic to birch pollen, eating things like apples, pears, cherries, carrots, or hazelnuts can cause a reaction.
- If you’re allergic to ragweed pollen, foods like melons (watermelon and cantaloupe), bananas, or zucchini can give you OAS triggered symptoms.
- If you’re allergic to grass pollen, tomatoes, peaches, and celery could be a problem.
But the thing is not everyone reacts to the same foods. It depends on where you live and what kind of pollen is common in your area.
Common Symptoms of Oral Allergy Syndrome
- Itching in the mouth or throat
- Tingling sensation in the lips, tongue, or throat
- Swelling of the lips, tongue, or throat
- Nausea
- Vomiting
- Diarrhea
- Skin reactions, such as rashes or hives
- Respiratory issues, such as sneezing or difficulty breathing
Risk Factors for Oral Allergy Syndrome
Pollen Allergies: Being allergic to pollen can make you more likely to develop OAS. This is because IAS is closely linked to how your body reacts to pollen. The more pollen allergies you have, the higher your chances of experiencing OAS symptoms.
Family History: If allergies run in your family, you might be at an even higher risk of getting this condition. If any of your siblings like your parents or siblings have conditions like hay fever, asthma, or food allergies, it increases the chance that you could develop pollen allergies.
Age: OAS is more common in teenagers and adults than in younger kids. This is because OAS develops affect a while of dealing with pollen allergies.
Nevertheless, not everyone with these factors will have OAS. But they help explain why some people are more likely to experience them.
Bottom Line
Oral Allergy Syndrome (OAS) occurs when your body reacts to fruits, vegetables, or nuts that contain proteins similar to pollen. It primarily affects patients with pollen allergies, causing symptoms such as stinging, tingling, or swelling in the mouth and throat. Unlike food intolerances, which impair digestion, OAS is an immune system reaction.
