<unk>  <unk>  is the feeding of nutritional products to a person intravenously, bypassing the usual process of eating and digestion. The products are made by pharmaceutical compounding companies. The person receives a nutritional mix according to a formula including glucose, salts, amino acids, lipids and vitamins and dietary minerals. It is called total<unk>  (TPN) or total nutrient admixture (TNA) when no significant nutrition is obtained by other routes, and partial<unk>  (PPN) when nutrition is also partially enteric. It is called peripheral<unk>  (PPN) when administered through vein access in a limb rather than through a central vein as central venous nutrition (CVN).
Parenteral nutrition
Vegetarian nutrition
Assisted feeding
Human–animal breastfeeding
Clinical nutrition
Macrobiotic diet
Nutrition transition
Artificial digestion