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Source
Unknown
Not yet classified by editors
Allergen
No
Role in food
Sulfur dioxide and sulfites act as preservatives and antioxidants in foods. They help maintain …
What it is
Sulfur dioxide (SO2) is a gas that can be used in food preservation. It is often added to foods in the form of sulfites, such as sodium sulfite, sodium bisulfite, or potassium metabisulfite. These compounds help prevent spoilage by inhibiting the growth of bacteria, yeasts, and molds.
Why it's used
Sulfur dioxide and sulfites act as preservatives and antioxidants in foods. They help maintain color and prevent browning in dried fruits and vegetables. They are commonly found in dried fruits, wine, and some processed potato products.
Health notes
Sulfites are generally recognized as safe (GRAS) by the FDA when used according to good manufacturing practices. However, some individuals, particularly those with asthma, may be sensitive to sulfites and experience allergic-type reactions. JECFA and EFSA have evaluated sulfites and established acceptable daily intakes. Evidence regarding widespread adverse effects in the general population at typical intake levels is mixed.
Allergen info
Sulfur dioxide itself is not a major allergen. However, it is often used in foods that may contain other allergens, such as wheat in baked goods.
Note:
This site presents label data from USDA FoodData Central for general information. It is not medical advice.
Check the package label; formulations change.