What describes a food allergen?

A food allergen is specifically described as a substance that can cause an allergic reaction in sensitive individuals. This definition is crucial because food allergens are proteins or specific components in foods that can trigger immune responses in people who are allergic. The reactions can range from mild to severe and in some cases may lead to anaphylaxis, which is a life-threatening situation.

In contrast, a natural flavoring, while it may be derived from food, does not necessarily provoke an allergic response in most individuals. Similarly, artificial preservatives are added to foods to prolong shelf life and do not inherently cause allergies. Lastly, a healthy ingredient beneficial for everyone implies a universal safety, which does not align with the nature of allergens that specifically affect certain sensitive individuals. Understanding the definition of a food allergen is vital for food safety and for protecting individuals with allergies in food handling and preparation.