Sulfite

Sulfites are a group of chemical compounds containing sulfur and oxygen. They occur naturally in small amounts in some foods and are also produced by the body. In food production, sulfites are often added as preservatives.

Sulfites are used to prevent spoilage by inhibiting the growth of mold and bacteria, and to preserve color in foods. They are commonly found in dried fruits, wine, processed meats, and baked goods like cakes and muffins.

In the U.S., sulfites are permitted as preservatives and are generally recognized as safe (GRAS) by the FDA when used according to regulations. However, some individuals, particularly those with asthma, may be sensitive to sulfites and experience allergic-type reactions. International bodies like JECFA and EFSA have evaluated sulfites and established acceptable daily intake levels. While generally considered safe for most people, ongoing research continues to explore potential sensitivities.