Mast Cell Activation Syndrome: What to Avoid


MCAS, or Mast Cell Activation Syndrome, is a condition that causes an individual to experience symptoms of anaphylaxis due to an overreaction of mast cells in the body. Mast cells are responsible for fighting off infections within the body, and producing allergic reactions. When they respond inappropriately, however, this causes a person to experience symptoms such as hives, headaches, swelling, and itching too often.


MCAS is a chronic condition - there is unfortunately not a cure. But there are many ways to manage symptoms! What is essential when treating MCAS is to know what will aggravate your condition. Here’s what to avoid.


In terms of diet, there are certain foods that can trigger symptoms. These include:

  • Alcohol

  • Dairy

  • Cured meats, such as

  • Canned fish

  • Nuts

  • Citrus

  • Chocolate

  • Tomatoes

  • Vinegar


By reducing your consumption of these foods, or eliminating them from your diet altogether, this can help greatly alleviate symptoms!


There are also common medications that can cause negative reactions. These include:

  • Opioids

  • Antibiotics

  • NSAIDs

  • Alcohol-containing medicines

  • Intravenous vancomycin


If you have been diagnosed with MCAS, take careful consideration about what foods and medication you take. Of course, each person differs in their triggers, so make sure to monitor your reactions to different items.


If you suspect you have MCAS based on symptoms you’re experiencing, it’s important to visit your doctor. They will be able to diagnose you with a few tests or by ruling out other similar conditions. This content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.


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