Exercise Induced Anaphylaxis and Food


You may have heard of Exercise Induced Anaphylaxis (EIA) which occurs during or immediately after exercise. It carries the same symptoms and dangers of anaphylaxis caused by allergies to foods including urticaria (hives), angioedema (swelling), respiratory and gastrointestinal difficulties and even anaphylactic shock.

You may not have heard of Food Dependent Exercise Induced Anaphylaxis (FDEIA). There are no symptoms when food intake and exercise occur separately, however when the trigger food is followed by exercise, symptoms can occur after a varying period. About 30-50% of EIA is food dependent.

Though considered rare, FDEIA is difficult to diagnose because traditional diagnostic methods such as skin prick tests and food challenges will return negative results.

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Researchers from Kanazawa University, Japan recently presented a case of FDEIA due to shrimp consumption in an 18-year-old. The patient presented with a history of anaphylactic episodes seven years earlier, which had developed in association with exercise after consumption of shrimp.

Prevention involves avoiding the combination of the trigger food and exercise, allowing 4 to 6 hours for digestion of the known trigger food before exercise, and carrying an epinephrine auto-injector during exercise.


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Dave Bloom
Dave Bloom
Dave Bloom is CEO and "Blogger in Chief" of SnackSafely.com.

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