What does the stomach do?
The main job of the stomach is to digest proteins. It then
allows the mixture of food and enzymes called 'chyme' to enter the
duodenum in order for all the other food types to be digested such
as carbohydrates and fats. The stomach is one of the principal
organ in your digestive system. The stomach holds the swallowed
food for up to four hours depending on the amount of food, churning
it to a pulp and initiating digestion, then passes it on by degrees
into the duodenum.
The function of the stomach is to store and digest food. It is responsible for the second phase of digestion, where stomach walls release enzymes and churn the contents.