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				Tube feeding can be a life-saving, 
				life-sustaining therapy. It can be used as a supplement for 
				children or adults who cannot consume enough regular foods to 
				survive well. Good nutrition and hydration can be provided 
				through tube feeding during recovery phases, pre-procedure 
				restoration of nutrition and hydration status, to specifically 
				address nutrient needs during diseases or other conditions, or 
				while overcoming other barriers to adequate consumption, 
				absorption, and/or the utilization of nutrients from foods. 
				
				
				Let’s start with definitions 
				of some of the terms we will be using, including enteral 
				nutrition, tube feeding, medical foods, and transitional 
				feeding. According to the American Society for Parenteral and 
				Enteral Nutrition (ASPEN), enteral nutrition is the consumption 
				(or enteral administration) of nutrients through a tube, 
				catheter, or stoma. This is sometimes called “tube feeding”, 
				which may be more specific to feeding through a tube that is 
				inserted into the esophagus, stomach, duodenum, or jejunum. 
				Other terms may include enteral tube feeding, nasogastric 
				feeding (a tube placed in the nose that is inserted into the 
				stomach), gastrostomy or jejunostomy (a tube placed through a 
				stoma into the stomach or jejunum), or other terms that can more 
				specifically describe the placement of the tube and method of 
				feeding.[1] 
				
				
				Medical foods are those formulas that are designed to assist in 
				the management of specific diseases or conditions that are 
				administered orally or enterally (beyond the mouth). 
				
				Definitions and 
				terminology 
				
				
				Enteral nutrition (EN)/tube feeding (TF): 
				Nutrition 
				provided to the GI tract via a tube, catheter, or stoma beyond 
				the mouth. 
				
				
				Medical food: 
				A formulation consumed or administered enterally under the 
				supervision of a physician, intended for dietary management of 
				disease or condition. (Orphan Drug Act, section 5(b)) 
				
				
				Transitional feeding: 
				Progression of feeding methods with continuous  levels of 
				nutrients. 
				  
				
				
				There are a number of ways to describe feeding methods, 
				including nocturnal feeding – which is feeding during sleeping 
				hours. In the case of transitional feeding, tube feeding may be 
				used to transition from parenteral feeds (which are nutrients 
				directly infused into the bloodstream) or as supplemental 
				feeding support while transitioning to oral intake of foods.
				
				 
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