What can cause vomiting in patients post gastric surgery?

Eating too fast after gastric surgery can lead to vomiting because it can overwhelm the reduced capacity of the stomach. After such procedures, the stomach is often smaller and has changed in function, resulting in a decreased ability to accommodate large amounts of food at once. When patients consume food too quickly, the stomach can become distended, triggering a reflex reaction that results in vomiting.

Moreover, rapid eating often leads to inadequate chewing and mixing of food with saliva, which can further irritate the stomach and complicate digestion. Patients are generally advised to eat slowly, chew their food thoroughly, and take smaller bites to facilitate better digestion and minimize the risk of discomfort or vomiting.

The other factors listed, such as drinking too much water or chewing food thoroughly, tend to be less problematic compared to the direct impact of consuming food quickly. In fact, proper chewing is encouraged as it aids digestion and can help avoid complications after surgery.