What is NGt used for? -A tube that is inserted through the nose, down the throat and esophagus, and into the stomach. It can be used to give drugs, liquids, and liquid food, or used to remove substances from the stomach. Giving food through a nasogastric tube is a type of enteral nutrition. What is a nasogastric tube feeding? -A nasogastric (NG) tube is a small tube that goes into the stomach through the nose. ... A feeding bag is used for the gastro-intestinal feeding in adult, paediatric or ne