Background: Lack of appropriate nutritional support during hospitalization may worsen patients' nutritional status and increases risk for infection, organ failure, decreased wound healing and suboptimal response to regular medical treatment. The prevalence and intensity of hospital malnutrition have been recognized as an important parameter in the outcome of disease. The study aimed at to determine incidence of malnutrition in hospitalized patients, the change in nutrition status during hospital stay and its effects on outcome of disease. Methods: It was a prospective study and conducted at a tertiary care hospital. Total 70 patients were studied. Each patient's nutritional status was determined from anthropometric data -body mass index, triceps skinfold thickness, mid-arm circumference, mid arm muscle circumference, MNA scoring, serum protein level changes during hospital stay. The next recording was done at 15 days and 30 days after discharge. Student's t is test used for statistical analysis. Results: The statistical difference for various parameters of nutritional status was found significant at admission and discharge. Conclusions: The change in various parameter of nutritional status was observed in hospitalized patients. The treatment should be aimed at treating specific disorders along with nutritional correction. It is recommended to have dietary plans at the time of admission in consultation with the dietician.

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