What are common triggers of anaphylaxis?

Peanuts and tree nuts are well-documented as some of the most common triggers of anaphylaxis, which is a severe and potentially life-threatening allergic reaction. Peanut allergies are particularly prevalent and can cause significant reactions in sensitive individuals even in minute amounts. Tree nuts, which include almonds, walnuts, and cashews, are also frequent culprits and are known to cause similar severe reactions.

The reason this answer is focused on peanuts and tree nuts is due to the specificity and the well-researched nature of these allergens in the context of food-related anaphylaxis. These allergens can provoke an acute immune response, leading to symptoms such as difficulty breathing, swelling of the throat, hives, and gastrointestinal distress.

In contrast, while vegetables and fruits can cause allergies, they are not as frequently associated with anaphylaxis as peanuts and tree nuts. The option addressing dairy products specifically as the sole contributor lacks the broader context of other well-known triggers like peanuts and tree nuts. The answer that states "none of the above" disregards the prevalent knowledge surrounding common allergens.

Therefore, identifying peanuts and tree nuts as the correct answer highlights the importance of awareness surrounding the most critical allergens that can lead to life-threatening situations requiring immediate medical intervention.