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Updated: Jul 10, 2025
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Published on: September 22, 2023
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Association between major dietary patterns and Parkinson's disease risk: a case-control study
Nafiseh Shokri-Mashhadi1, Reza Ghiasvand2, Awat Feizi3
1Department of Clinical Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
Summary
Adhering to a Western diet may significantly increase Parkinson's disease (PD) risk. Conversely, traditional, healthy, and light dietary patterns show a protective association, potentially lowering PD incidence.
Area of Science:
- Neurology
- Nutritional Science
- Epidemiology
Background:
- Emerging evidence suggests dietary factors influence Parkinson's disease (PD) pathogenesis.
- Limited data exists on the specific relationship between dietary patterns and PD risk.
Purpose of the Study:
- To investigate the association between major dietary patterns and the risk of developing Parkinson's disease.
Main Methods:
- A case-control study involving 105 PD patients and 215 healthy controls.
- Dietary patterns identified using principal component analysis on data from a food frequency questionnaire.
- Parkinson's disease diagnosis confirmed by UK Brain Bank criteria.
Main Results:
- Four dietary patterns were identified: traditional, healthy, western, and light.
- Higher adherence to traditional, healthy, and light dietary patterns was associated with a reduced risk of PD.
- A Western dietary pattern was significantly associated with an increased risk of PD (OR: 7.26).
Conclusions:
- Western dietary patterns may increase Parkinson's disease risk substantially.
- Traditional, healthy, and light dietary patterns appear to have a protective effect against Parkinson's disease.
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