Nutrition: Ways to Promote Oral Intake Download English ver PDF, 0.98MB, PDF Download Chinese ver PDF, 347KB, PDF Poor oral intake or a loss of appetite may be contributed by: Gastrointestinal symptoms (e.g. vomiting, nausea) Early satiety (feeling full quickly after eating)Taste changes Difficulties in swallowing and eating Reduced interest in foods These can be due to illnesses such as cancer, respiratory issues, dementia, stroke or if you are undergoing treatments (e.g. chemotherapy, radiation therapy). Certain medications and dental problems can also cause you to have poor oral intake. [Please download the PDF file if you are unable to view the image below.]