Assessment of nutritional status in patients with Parkinson's disease and its relationship with severity of the disease.

Malnutrition, loss of body weight, muscle and fat mass wasting are common in patients with Parkinson's disease, and are associated with disability, longer length of hospital stay, impaired immune system and increased risk of mortality. The aim of this study was to assess the nutritional status in patients with Parkinson's disease and its relation to the severity of the disease. This cross- sectional study was conducted on 130 patients with Parkinson's disease, with a mean (SD) age of 59.