High cocoa polyphenol rich chocolate may reduce the burden of the symptoms in chronic fatigue syndrome

Sathyapalan, Thozhukat, Beckett, Stephen, Rigby, Alan S., Mellor, Duane D. and Atkin, Stephen L. 2010, High cocoa polyphenol rich chocolate may reduce the burden of the symptoms in chronic fatigue syndrome, Nutrition journal, vol. 9, doi: 10.1186/1475-2891-9-55.

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Title High cocoa polyphenol rich chocolate may reduce the burden of the symptoms in chronic fatigue syndrome
Author(s) Sathyapalan, Thozhukat
Beckett, Stephen
Rigby, Alan S.
Mellor, Duane D.
Atkin, Stephen L.
Journal name Nutrition journal
Volume number 9
Article ID 55
Total pages 5
Publisher BMC
Place of publication London, Eng.
Publication date 2010-11-22
ISSN 1475-2891
Keyword(s) Activities of Daily Living
Body Mass Index
Cross-Over Studies
Double-Blind Method
Fatigue Syndrome, Chronic
Food, Formulated
Middle Aged
Pilot Projects
Psychiatric Status Rating Scales
Severity of Illness Index
Summary BACKGROUND: Chocolate is rich in flavonoids that have been shown to be of benefit in disparate conditions including cardiovascular disease and cancer. The effect of polyphenol rich chocolate in subjects with chronic fatigue syndrome (CFS) has not been studied previously. METHODS: We conducted a double blinded, randomised, clinical pilot crossover study comparing high cocoa liquor/polyphenol rich chocolate (HCL/PR) in comparison to simulated iso-calorific chocolate (cocoa liquor free/low polyphenols(CLF/LP)) on fatigue and residual function in subjects with chronic fatigue syndrome. Subjects with CFS having severe fatigue of at least 10 out of 11 on the Chalder Fatigue Scale were enrolled. Subjects had either 8 weeks of intervention in the form of HCL/PR or CLF/LP, with a 2 week wash out period followed by 8 weeks of intervention with the other chocolate. RESULTS: Ten subjects were enrolled in the study. The Chalder Fatigue Scale score improved significantly after 8 weeks of the HCL/PR chocolate arm [median (range) Exact Sig. (2-tailed)] [33 (25 - 38) vs. 21.5 (6 - 35) 0.01], but that deteriorated significantly when subjects were given simulated iso-calorific chocolate (CLF/CP) [ 28.5 (17 - 20) vs. 34.5 (13-26) 0.03]. The residual function, as assessed by the London Handicap scale, also improved significantly after the HCL/PR arm [0.49 (0.33 - 0.62) vs. 0.64 (0.44 - 0.83) 0.01] and deteriorated after iso-calorific chocolate [00.44 (0.43 - 0.68) vs. 0.36 (0.33 - 0.62)0.03]. Likewise the Hospital Anxiety and Depression score also improved after the HCL/PR arm, but deteriorated after CLF/CP. Mean weight remained unchanged throughout the trial. CONCLUSION: This study suggests that HCL/PR chocolate may improve symptoms in subjects with chronic fatigue syndrome.
Language eng
DOI 10.1186/1475-2891-9-55
Field of Research 1111 Nutrition And Dietetics
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2010, Sathyapalan et al.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30119470

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