Nutritional Therapy as a component of medical treatment provides required nutrition orally, enterally or parenterally (intravenously). It includes evaluation of a patient’s nutritional status, and providing appropriate nutritional support for patients with complications from conditions such as diabetes, heart disease, and cancer that prevents them from receiving adequate nutrition. It may involve simple changes in a person's diet, or intravenous or tube feeding. Nutritional therapy as a component of medical care may help patients recover more quickly and reduce hospitalization time.
Source: National Cancer Institute