Which of the following is a common allergen that servers need to be aware of?

Tree nuts are a common allergen that servers need to be particularly aware of because they can cause severe allergic reactions in many people. Tree nut allergies are among the most prevalent food allergies and can result in life-threatening conditions like anaphylaxis. It is crucial for servers to understand and recognize the presence of tree nuts in dishes and ingredients, especially since tree nuts are often used in many culinary preparations, including salads, desserts, and sauces.

Awareness of this allergen not only helps in preventing allergic reactions but also provides a level of safety and assurance to guests with allergies. It is essential for servers to communicate effectively with their guests regarding tree nuts and ensure that any meals served are free from cross-contamination. This level of vigilance is critical in maintaining a safe dining environment for all guests.