In terms of food additives, which of the following substances is considered a common allergen?

Sulfites are commonly recognized as allergens and can cause serious reactions in individuals who are sensitive to them. Found in various food items and used as preservatives, sulfites can trigger asthma and allergic reactions in susceptible individuals, particularly in those with asthma. The presence of sulfites in products like dried fruits, wine, and some processed foods makes it crucial for consumers to be aware of their potential effects.

While sugars, vinegar, and water are generally safe for most people and do not commonly cause allergic reactions, sulfites have established allergenic properties. This distinction highlights the importance of identifying and managing food allergens in dietary practices, particularly for vulnerable populations.