How can an allergy to peanuts be life threatening?

A peanut allergy can be life-threatening because it can cause a severe allergic reaction called anaphylaxis. Anaphylaxis is a sudden, severe, and potentially life-threatening allergic reaction that can occur within minutes of exposure to an allergen.

In the case of a peanut allergy, exposure to even a small amount of peanuts or peanut-containing products can trigger anaphylaxis. When a person with a peanut allergy comes into contact with peanuts, their immune system overreacts, producing a flood of chemicals that can cause a range of symptoms, including:

- Hives or swelling of the face, lips, tongue, or throat

- Difficulty breathing or wheezing

- A rapid or weak pulse

- Dizziness or fainting

- Nausea, vomiting, or diarrhea

- A feeling of impending doom

In severe cases, anaphylaxis can lead to respiratory failure, cardiac arrest, and death. That's why it's crucial for individuals with a peanut allergy to strictly avoid exposure to peanuts and to always carry an epinephrine (adrenaline) auto-injector (EpiPen or Auvi-Q) in case of an accidental exposure.