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Basics of Alpha-Gal meat allergy.

Alpha-gal meat allergy, also known as alpha-gal syndrome or galactose-alpha-1,3-galactose (alpha-gal) sensitivity, is a rare and potentially life-threatening allergic reaction to red meat and some other animal products. It is caused by the presence of alpha-gal, a type of carbohydrate found in the fat and cells of mammals.

Symptoms of alpha-gal meat allergy usually occur several hours after consuming red meat or other animal products and can include hives, itching, difficulty breathing, stomach pain, and vomiting. In severe cases, anaphylaxis, a potentially life-threatening allergic reaction, can occur.

The cause of alpha-gal meat allergy is not fully understood, but it is thought to be related to the bite of certain types of ticks, specifically the lone star tick, which is found in the southeastern and eastern United States. When a person is bitten by an infected tick, they may develop an allergy to alpha-gal.

There is no cure for alpha-gal meat allergy and the only way to prevent symptoms is to avoid consuming red meat and other animal products that contain alpha-gal. This can be challenging because alpha-gal is found in many unexpected products, such as certain medications, vaccines, and some types of rubber.

If you have experienced symptoms after consuming red meat or other animal products, it is important to speak with a healthcare provider. They can help diagnose alpha-gal meat allergy and provide guidance on how to manage and avoid potential triggers.


It is also important to take precautions to prevent tick bites, especially if you live in an area where ticks are common. This can include wearing long sleeves and pants when outdoors, using insect repellent, and performing tick checks after spending time in wooded or grassy areas.

In conclusion, alpha-gal meat allergy is a rare and potentially serious condition that is caused by the bite of certain types of ticks. The only way to prevent symptoms is to avoid consuming red meat and other animal products that contain alpha-gal. If you have experienced symptoms after consuming red meat or other animal products, it is important to speak with a healthcare provider and take precautions to prevent tick bites.

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