What is the pH of stomach acid?

The pH value of gastric acid is different at different time periods.

Gastric acid begins to secrete after food enters the stomach. At this time, the pH value can drop to 2~3. After gastric emptying, the pH value is between 7.0 and 7.2. The main function of gastric acid is to digest and decompose proteins and kill some microorganisms. The amount of gastric acid must be controlled within a certain range

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