What element helps to preserve food?

The element that helps to preserve food is Sodium (Na). Sodium is an essential mineral that is naturally found in many foods, such as celery, carrots, and salt. It is also commonly added to processed foods as a preservative. Sodium helps to preserve food by preventing the growth of bacteria and other microorganisms that can cause spoilage. It also helps to inhibit the growth of fungi, which can cause mold and other types of spoilage.