The [[1]] acid in gastric juice aids in the killing of harmful bacteria and other microorganisms found in food, as well as in creating an acidic environment in the stomach that is hostile to bacteria and other microorganisms.

The hydrochloric acid in gastric juice aids in the killing of harmful bacteria and other microorganisms found in food, as well as in creating an acidic environment in the stomach that is hostile to bacteria and other microorganisms.

One of the main components of gastric juice, which is secreted by the stomach lining, is hydrochloric acid. Gastric juice also contains digestive enzymes, which aid in the breakdown of food. 

Furthermore, hydrochloric acid aids in the activation of digestive enzymes, which aid in the breakdown of food and the availability of nutrients for absorption in the small intestine. The acid also aids in the dissolution and breakdown of certain foods, such as proteins.