Metabisulfite
What is Metabisulfite?
Metabisulfite is a white crystalline powder. It is a salt of sulfurous acid, often produced by reacting sulfur dioxide with a base like sodium carbonate or sodium hydroxide. It is commonly used in food processing.
Is Metabisulfite vegan?
Metabisulfite is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.
Is Metabisulfite gluten-free?
It does not contain gluten.
Is Metabisulfite a major allergen?
Metabisulfite is not derived from any of the nine FDA major allergens.
What is Metabisulfite used for?
Metabisulfite acts as a preservative and antioxidant.
Is Metabisulfite safe?
Metabisulfite is generally recognized as safe (GRAS) by the FDA when used according to good manufacturing practices.
Why it's used
Metabisulfite acts as a preservative and antioxidant. It helps prevent spoilage by inhibiting the growth of bacteria and fungi and by preventing browning in fruits and vegetables. It is often found in dried fruits, wine, and processed potatoes.
Health notes
Metabisulfite is generally recognized as safe (GRAS) by the FDA when used according to good manufacturing practices. It can cause allergic reactions in some individuals, particularly those with asthma. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated metabisulfites and established acceptable daily intakes. Evidence regarding its effects at typical intake levels is mixed, with some studies suggesting potential benefits and others raising concerns.
Allergen info
Metabisulfite is not derived from any of the nine FDA major allergens. It does not contain gluten.
Foods that contain Metabisulfite
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