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.
6 Types of Nutrients Your Body Needs. When reading any kind of food and diet posts, you may notice that the human body needs a variety of essential nutrients to function properly. Unless you are a dietitian, you probably donât know what types of nutrients your body should get on a daily basis. Every food contains at least 3 nutrients, though consuming lots of fruit and veggies each day gives you more essential nutrients. Why are these nutrients so important to our health?