When would you expect the rate of acid secretion to be at its highest?

About one hour after eating the meal-the peak rate of acid secretion usually occurs between one and two hours after eating the meal (the gastric phase). acid secretion is increased but to a lesser extent by thinking about food e.g. in a restaurant looking at a menu and smelling the food of other diners (the cephalic phase) and although this secretion is added to by the act of eating within the first few minutes of ingesting a meal the peak secretory flow is not achieved in such a short space of time. as food enters the intestine around two to three hours after eating, there is a further small increase in acid secretion, but again at its peak it is still less than in the gastric phase secretion - which has already subsided.