Parkinson disease is the second most common neurodegenerative disease all over the world.Besides motor and non-motor symptoms which are commonly seen in patients

nutrition problems including malnutrition also exist.Compared to motor symptoms and non-motor symptoms including depression

anxiety and sleep disorder

the malnutrition in Parkinson′s disease is usually underestimated and ignored.This review focuses on the prevalence

risk factors

specific types of malnutrition in Parkinson′s disease

specific deficiency of specific nutrients

change of dietary habits

and intervention of malnutrition.