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Is alpha-gal real?

Published in Alpha-Gal Syndrome 2 mins read

Yes, alpha-gal syndrome (AGS) is a real and serious allergic condition.

Alpha-gal syndrome (AGS), also known as alpha-gal allergy or red meat allergy, is a potentially life-threatening allergic reaction that can develop after being bitten by certain types of ticks. The allergy is to a sugar molecule called galactose-alpha-1,3-galactose (alpha-gal), which is present in most mammals, except humans, apes, and Old World monkeys.

Understanding Alpha-Gal Syndrome

  • Cause: The primary cause of AGS is believed to be tick bites, particularly from the Lone Star tick in the United States. When a tick bites a mammal (like a deer or cow), it ingests alpha-gal. It then injects this alpha-gal into a human during a subsequent bite, which can trigger an immune response and sensitize the person to alpha-gal.

  • Symptoms: Symptoms of AGS typically appear 3-8 hours after consuming red meat (beef, pork, lamb) or other mammalian products. These symptoms can vary widely among individuals and may include:

    • Hives or itchy rash
    • Nausea or vomiting
    • Heartburn or indigestion
    • Diarrhea
    • Cough or shortness of breath
    • Drop in blood pressure
    • Swelling of the lips, throat, tongue, or eyelids
    • Severe stomach pain
  • Diagnosis: AGS is diagnosed through a blood test that measures the levels of IgE antibodies specific to alpha-gal.

  • Treatment: There is no cure for AGS. Management focuses on avoiding alpha-gal-containing foods and products. This includes red meat, pork, gelatin, dairy (in some cases), and certain medications. Epinephrine auto-injectors (like EpiPens) are prescribed for individuals at risk of anaphylaxis.

  • Prevention: The best way to prevent AGS is to avoid tick bites. Use insect repellent, wear long sleeves and pants when in wooded areas, and check your body for ticks after spending time outdoors.

Alpha-gal syndrome is a genuine and increasingly recognized health concern linked to tick bites and the subsequent allergic reactions it causes. If you suspect you have AGS, it is crucial to consult with a healthcare professional for diagnosis and management.

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