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Clinical nutrition centers on the prevention, diagnosis, and management of nutritional changes in patients linked to chronic diseases and conditions primarily in health care. Clinical in this sense refers to the management of patients, including not only outpatients at clinics and in private practice, but also inpatients in hospitals. It incorporates primarily the scientific fields of nutrition and dietetics. Furthermore, clinical nutrition aims to maintain a healthy energy balance, while also providing sufficient amounts of nutrients such as protein, vitamins, and minerals to patients. Dietary needs and disease processes Normally, individuals obtain the necessary nutrients their bodies require through normal daily diets that process the foods accordingly within the body. Nevertheless, there are circumstances such as disease, distress, stress, and so on that may prevent the body from obtaining sufficient nutrients through diets alone. In such conditions, a dietary supplementation specifically formulated for their individual condition may be required to fill the void created by the specific condition. This can come in form of Medical Nutrition. Methods of nutrition Among the routes of administration, the preferred means of nutrition is, if possible, oral administration. Alternatives include enteral administration (in nasogastric feeding) and intravenous (in parenteral nutrition). Clinical malnutrition In the field of clinical nutrition, malnutrition has causes, epidemiology and management distinct from those associated with malnutrition that is mainly related to poverty. The main causes of clinical malnutrition are: Cachexia caused by diseases, injuries and/or aging Difficulties with ingestion, such as stroke, paresis, dementia, depression, dysphagia Clinical malnutrition may also be aggravated by iatrogenic factors, i.e., the inability of a health care entity to appropriately compensate for causes of malnutrition. There are various definitions of clinical malnutrition. According to one of them, patients are defined as severely undernourished when meeting at least one of the following criteria: BMI < or = 20 kg/m2 and/or > or = 5% unintentional weight loss in the past month and/or > or = 10% unintentional weight loss in the past 6 months. By the same system, the patient is moderately undernourished if they met at least one of the following criteria: BMI 20.1–22 kg/m2 and/or 5-10% unintentional weight loss in the past six months. Medical nutrition therapy Medical nutrition therapy (MNT) is the use of specific nutrition services to treat an illness, injury, or condition. It was introduced in 1994 by the American Dietetic Association to better articulate the nutrition therapy process. It involves the assessment of the nutritional status of the client and the actual treatment, which includes nutrition therapy, counseling, and the use of specialized nutrition supplements, devised and monitored by a medical doctor physician or registered dietitian nutritionist (RDN). Registered dietitians started using MNT as a dietary intervention for preventing or treating other health conditions that are caused by or made worse by unhealthy eating habits. The role of MNT when administered by a physician or dietitian nutritionist (RDN) is to reduce the risk of developing complications in pre-existing conditions such as type 2 diabetes as well as ameliorate the effects any existing conditions such as high cholesterol. Many medical conditions either develop or are made worse by an improper or unhealthy diet. An example is the use of macronutrient preload in type 2 diabetes. Administration In most cases the use of Medical Nutrition is recommended within international and professional guidelines. It can be an integral part of managing acute and short-term diseases. It can also play a major role in supporting patients for extended periods of time and even for a lifetime in some special cases. Medical Nutrition is not meant to replace the treatment of disease but rather complement the normal use of drug therapies prescribed by physicians and other licensed healthcare providers. Unlike Medical Foods which are defined by the U.S. Department of Health and Human Services Food and Drug Administration, within their Medical Foods Guidance Documents & Regulatory Information guide in section 5(b) of the Orphan Drug Act (21 U.S.C. 30ee (b) (3)); as "a food which is formulated to be consumed or administered enterally under the supervision of a physician and which is intended for the specific dietary management of a disease or condition for which distinctive nutritional requirements, based on recognized scientific principles, are established by medical evaluation," Advantages The following advantages come with medical nutrition: It is often very effective in treating type 1 or type 2 diabetes. It can help one to live better at any age Disadvantages The following are some disadvantages of medical nutrition: A patient may need to follow a strict diet to see benefits while using a medical nutrition plan. Some forms of medical nutrition can be very expensive. A poor patient may not afford such. Journals The American Journal of Clinical Nutrition is the highest-ranked journal in ISI's nutrition category. See also European Society for Clinical Nutrition and Metabolism Eating disorders Medical food Nutrition Therapeutic food Notes and references External links Academy of Nutrition and Dietetics. Discover the Sara Rosett popular books. Find the top 100 most popular Sara Rosett books.