What does your stomach's digestive juice contain?

The stomach's digestive juice primarily contains hydrochloric acid (HCl), which helps break down food and activates digestive enzymes. It also includes pepsinogen, an inactive enzyme that is converted to pepsin in the acidic environment, aiding in protein digestion. Additionally, the juice contains mucus that protects the stomach lining from the corrosive effects of the acid. Together, these components facilitate the digestion of food before it moves to the small intestine.