Dietary intervention and gastrointestinal function in patients with Parkinson’s disease


This study determines a baseline for leaky gut for people with Parkinson’s disease (PD) versus healthy controls. We also hope to see if eating a Mediterranean diet will alter gut, bacteria, inflammation, and function in people with PD.


  • The total amount of time you will be in the study is 7 weeks (2-week baseline period and 5-week diet intervention period)
  • During the study, you will complete daily and weekly questionnaires to assess bowel function, stress, dietary intake, and unexpected medical events
  • Demographic, neurological, and dietary questionnaires will be collected at specified time points
  • Participants will be given diet education on the Mediterranean diet and asked to follow the diet for 5-weeks
  • Diet education will be given by a dietitian (RDN) followed by weekly phone calls
  • You will be asked to provide stool and urine samples before and after the intervention period

Additional study procedures can be explained by the study team. Please contact Carley Rusch: 


  • 21-85 years old 
  • Physician-diagnosed Parkinson's Disease 
  • Hoehn & Yahr stage < 3
  • Currently living in the same household with a healthy spouse/partner who meets study eligibility criteria and is willing to participate
  • Lives within the Gainesville, Lake City, Ocala areas

Additional criteria apply. Please contact Carley Rusch for more information: 


18 to 65
65 and over



Monetary compensation


Can be done from home



Parkinson disease, Parkinson's disease, Parkinson's disease - resources

Principal Investigator

Bobbi Langkamp-Henken, PhD, RD

Contact Information

(352) 340-7321

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