what is the role of the acid in our stomach

The acid present in our stomach is mainly hydrochloric acid (HCl). It helps in digestion and protects the body from harmful microorganisms.

Main roles of stomach acid

• Activates digestive enzymes:
  Hydrochloric acid converts inactive pepsinogen into pepsin, which helps digest proteins.

• Provides an acidic medium:
  Digestive enzymes in the stomach work efficiently only in an acidic environment.

• Kills harmful germs:
  The acid destroys many bacteria and microbes that enter with food and water.

• Helps in proper digestion:
  It softens and breaks down food for easier digestion in the intestine.

The stomach has a protective mucus lining that prevents the acid from damaging its walls. An imbalance in acid production can lead to acidity, indigestion, or stomach ulcers.