Which of the following is NOT considered to be one of "The Big Eight" allergens?

The correct answer identifies onions as not being one of "The Big Eight" allergens. "The Big Eight" refers to the eight food allergens that are responsible for the majority of allergic reactions. These include milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, and soybeans. Each of these allergens can trigger serious health risks for individuals with allergies.

Onions, while they can cause reactions in some individuals, are not classified among the most common allergens that lead to severe allergic responses. Recognizing these specific allergens is crucial for food safety and for preventing cross-contact in food service operations, as proper identification and avoidance strategies are vital to protect customers with food allergies. In contrast, peanuts, wheat, and shellfish are all included in "The Big Eight" and require careful management in food preparation and serving environments.