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Dietary variations in a multi-ethnic Parkinson’s disease cohort and possible influences on nonmotor aspects: a cross-sectional multicentre study

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Anna Sauerbier, Anette-Eleonore Schrag, Martinez‐Martin Pablo, Lynsey Hall, Miriam Parry, Laurie Michely, Panagiotis Zis, Kallol Ray Chaudhuri

Original languageEnglish
JournalParkinson's disease
Publication statusPublished - 19 Dec 2018

King's Authors


Dietary habits may differ between Parkinson’s disease (PD) patients of different ethnicities. The primary aim of this cross-sectional analysis was to compare dietary habits in a multi-ethnic PD population and investigate potential nonmotor differences. All patients completed a dietary habits questionnaire. Besides basic demographics, patients’ motor involvement (Hoehn and Yahr (HY)) and nonmotor symptoms (Nonmotor symptoms scale, hospital anxiety and depression scale) were assessed. 139 PD patients were included (mean age 66.8±11.6;61.2% male; mean disease duration 6.2±5.2; median HY 3): 47.5% were White, 24.5% Asian, and 28.0% Black African Caribbean (BAC). We found dietary differences between the groups, including a greater frequency of vegetarians and greater consumption of chili, cumin, turmeric and cinnamon in Asian patients than in White and BAC and higher consumption of pork in White than Asian and BAC patients. There were no significant differences in dietary supplement consumption after adjustment for multiple comparisons. None of the dietary factors examined were associated with differences in nonmotor symptoms. Diet and supplement use vary in PD patients across ethnicities, this is both a problem and opportunity for nutritional medicine research. These data support the importance of considering ethnic diversity as part of recruitment strategy in nutrition and clinical studies.

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