Abstract
<jats:p>The stomach and duodenum play essential roles indigestion, facilitating the breakdown and absorption of nutrients. When the medical or surgical team suspects gastric outlet obstruction, they should promptly refer the patient to the dietetic department to assess nutritional risks, evaluate nutritional status, determine the risk of re‐feeding syndrome and implement appropriate nutritional management. The most common cause of gastroparesis, accounting for up to 50% of cases, is idiopathic in nature. Gastro‐oesophageal reflux disease is a chronic condition characterised by the reflux of stomach contents into the oesophagus, causing symptoms such as heartburn and regurgitation. Dyspepsia, commonly referred to as indigestion, is a clinical syndrome characterised by persistent or recurrent pain or discomfort in the upper abdomen. Gastritis refers to inflammation of the gastric mucosa, which can be acute or chronic. Dietetic diagnosis for stomach and duodenal disorders identifies nutrition‐related problems contributing to malnutrition, symptom burden or impaired gastrointestinal function.</jats:p>