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Diets that have effects on health problems can vary in their composition. Whilst following a regular diet (RD) a person typically consumes about 30% of calories from fat. Ketogenic diet (KD) is a form of diet whereby a person consumes as much as 90% of calories from fat. KD has been trialed as a treatment for neurological diseases and obesity. Parkinson's disease (PD) is a neurologic disease that impacts the quality of voice. Voice Handicap Index (VHI) is a test that gives information to clinical and physiological assessment about voice. We assessed the impact of KD and RD on voice quality (VQ). Seventy-four patients with PD who reported a voice disorder related to their disease were randomly assigned to the KD or RD groups. We investigated the VHI change of subjects before and 3 months after diet. Sixty-eight PD patients completed the study. Baseline VHI values did not differ significantly between groups. All mean VHI parameters improved in KD group (p˂ 0.001). Currently there are different therapies that address speech and voice disorders in patients with PD. As such KD may be an alternative therapy to improve VQ of patients with PD. A larger sample size is necessary to determine the role and pathophysiology of KD on VQ of PD patients.

Citation

Handan Koyuncu, Vural Fidan, Hayal Toktas, Omer Binay, Hamit Celik. Effect of ketogenic diet versus regular diet on voice quality of patients with Parkinson's disease. Acta neurologica Belgica. 2020 Sep 06


PMID: 32892250

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