When swollen lymph nodes are caused by an infection, this is known as lymphadenitis (lim-fad-uh-NIE-tis). Rarely, swollen lymph nodes are caused by cancer. Your lymph nodes, also called lymph glands, play a vital role in your body's ability to fight off infections. They function as filters, trapping viruses, bacteria and other causes of illnesses before they can infect other parts of your body.
As a source of calories, proteins provide four Calories per gram. Proteins are made up of smaller building blocks called amino acids. Twenty amino acids make up all of the human proteins. Of these twenty amino acids, the body can produce only 12, but 8 must be incorporated into the diet.
Animals contain a few of the nutrients humans need to survive, although similar nutrients can be found in non-animal food items. The six kinds of nutrients are proteins, lipidsâ¦. 2  Fiber on the Go with Ensure Fiber Everyone knows that the body needs certain nutrients in order to function properly. 3  One of those much-needed nutrients is fiber.