1, the nutritional components of enteral nutrient solution are not comprehensive enough. Enteral nutrient solution only contains basic nutrients such as carbohydrate, protein and fat, but lacks trace elements such as vitamins and minerals. Therefore, it is not enough to use enteral nutrient solution for nasal feeding of the elderly, and other foods or nutrients are needed.

2. Patients with nasal feeding have dysphagia. For the elderly, due to the decline of physical function, dysphagia will occur, which will lead to insufficient digestion and absorption of nasal feeding nutrient solution, thus affecting the body's nutrient intake.