Sodium Metabisulfite-food Additive

Sodium metabisulfite (SMBS), also known as sodium pyrosulfite, is a versatile food additive also used as a preservative. It has antioxidant benefits, and can be used as a bleaching agent and corrosion inhibitor. This versatile ingredient is generally safe to use. However, some studies have linked this ingredient to elevate blood serum sodium levels. Be sure to read food labels and weigh the pros and cons of this ingredient in your diet.