You are likely allergic to pitted fruit due to cross-reactivity between proteins found in the fruit and certain pollen proteins.
Understanding Pitted Fruit Allergies
Pitted fruits, also known as stone fruits, include fruits like peaches, cherries, plums, apricots, and nectarines. Allergic reactions to these fruits can occur for various reasons, but one common cause is cross-reactivity.
Cross-Reactivity Explained
According to research, the proteins in stone fruits are similar to those found in certain pollens. When your immune system recognizes these similar proteins, it can trigger an allergic reaction. This is called cross-reactivity.
Examples of Cross-Reactivity
- Pollen-Food Syndrome (Oral Allergy Syndrome): Many people with pollen allergies also experience allergic reactions to certain fruits and vegetables. This is because the proteins in these foods are structurally similar to the pollen proteins.
- Tree Pollen Allergies: If you are allergic to tree pollen, such as chestnut or walnut tree pollen, you might react to stone fruits like cherries and peaches. The proteins in these pollens and fruits are similar enough to cause a reaction.
Possible reasons for Allergy
- Pollen cross-reactivity: Individuals with pollen allergies may experience cross-reactivity with proteins found in pitted fruits, triggering an allergic reaction.
- Oral Allergy Syndrome (OAS): OAS is a common condition where individuals experience itching or swelling in the mouth or throat after consuming certain raw fruits or vegetables, including pitted fruits.
- Fruit-specific allergies: Some individuals may have specific allergies to proteins found exclusively in certain pitted fruits, leading to allergic reactions upon consumption.
- Example: An allergy to the Lipid Transfer Protein (LTP) present in some pitted fruits.
Managing Pitted Fruit Allergies
Here are some ways to manage your allergies:
- Avoidance: The most effective way to manage a food allergy is to avoid the allergenic food.
- Antihistamines: These medications can help relieve mild allergy symptoms, such as itching or hives.
- Epinephrine Auto-Injector (EpiPen): If you are at risk of a severe allergic reaction (anaphylaxis), your doctor may prescribe an epinephrine auto-injector. Use this immediately if you experience symptoms such as difficulty breathing, wheezing, or throat swelling.
- Cooked vs. Raw Fruit: Some people find they can tolerate cooked fruit better than raw fruit, as cooking can break down some of the allergenic proteins.
- Allergy Testing: Consult an allergist for proper testing and diagnosis to confirm the specific allergens causing your reactions.
Seeking Professional Help
If you suspect you have a pitted fruit allergy, it's essential to consult an allergist. They can perform tests to confirm your allergy and provide personalized advice on how to manage it.
