Unfortunately, digestion in people with Parkinson’s is affected. Research shows that delayed intestinal movements (constipation) occur in at least 30% of Parkinson's patients .This is partly due to the fact that Parkinson's disease already affects the nerve cells in the intestines early on. Not seldomly do the delayed intestinal movements start years before other symptoms of Parkinson's disease become apparent. In addition, factors such as reduced movement, poor hydration or medication may play a role in the development of the delayed intestinal movements.