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How a low carb/ketogenic diet affects Parkinson's disease symptoms: a 36-week study

Effects of three dietary approaches on biomarkers, cognition, sleep and fatigue in Parkinson’s disease: a 36-week crossover pilot study

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN13221188
Enrollment
36
Registered
2023-03-08
Start date
2023-01-04
Completion date
Unknown
Last updated
2025-01-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Nutritional interventions for Parkinson's Disease Nervous System Diseases

Interventions

The research will involve a comparison of: Intervention 1: 8 weeks of consuming a Standard American Diet as defined by the USDA Food Pyramid Intervention 2: 8 weeks of consuming a Standard American Di

Sponsors

Colorado Parkinson Foundation
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Between the ages of 30-85 years 2. Live in the United States 3. Can speak, read and understand English 4. Diagnosis of PD (H-Y Stages I-IV) 5. BMI>18.5 kg/m² 6. Ability to understand and follow an LCHF/KD diet 7. Obtained permission to participate from their Primary Care Provider (PCP) or neurologist 8. Signed the informed consent and the HIPAA Release of Medical Information form

Exclusion criteria

Exclusion criteria: 1. Does not meet inclusion criteria 2. Persons with PD H-Y Stage V 3. Persons with unstable/uncontrolled type 2 diabetes

Design outcomes

Primary

MeasureTime frame
Measured before and after each 8-week diet period: 1. Blood biomarkers measured using blood test: 1.1. Biomarkers HDL 1.2. HgA1C 1.3. Triglycerides 1.4. Fasting Insulin 1.5. hs-C-Reactive Protein 2. Biometrics 2.1. BMI (kg/m²) 2.2. Waist circumference (cm) 3. Parkinson's symptoms 3.1. Cognition using scores on the Parkinson’s Disease Cognitive Rating Scale 3.2. Sleep quality as measured by the Epworth Sleepiness Scale and the Parkinson’s Disease Sleep Scale 3.3. Fatigue scores measured by the Parkinson’s Disease Fatigue Scale 3.4. Scores on Part I of the United Parkinson’s Disease Rating Scale (UPDRS) 3.5.Scores on Part II of the United Parkisnon’s Disease Rating Scale (UPDRS)

Secondary

MeasureTime frame
There are no secondary outcome measures

Countries

United States of America

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026