New research discovers that it is normal for patients with Parkinson’s disease to have significant weight fluctuations. People may gain or lose weight depending on the stage of the disease. They may also gain up to 25 pounds after a course of deep brain stimulation.

A variety of factors can influence poor dietary habits among individuals with Parkinson’s disease. Common issues include depression, cognitive impairment, and sensory disturbances that alter smell and taste. Additionally, an impaired ability to feel pleasure may trigger incorrect eating habits.

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