The role of digestive health in Parkinson’s progression. Understanding the impact of digestive health on Parkinson’s disease starts with a deeper look at the mucosal lining of the digestive tract.

What are the symptoms of Parkinson’s disease in the gut? Constipation is the biggest symptom, Chang says. But difficulty swallowing (a.k.a. dysphagia) can also be a sign, she adds.

Parkinson’s disease affects the central nervous system. It causes nerve cells in the brain to weaken and eventually die, leading to symptoms that include tremors and impaired balance, ...