Food effects on gastric acid control

Foods stimulate gastric acid secretion, and a reduction in intragastric pH is expected. However, the pH usually rises in the post-prandial period due to the buffering capacity of the meal. Particularly after a meal high in protein, gastric pH may be increased. This increase in pH can be important for protein digestibility. As shown above, both lunch and dinner typically casue a change in intragastric pH, but not intraduodenal pH .