Ketone body therapy represents an emerging metabolic approach to treating neurodegenerative diseases by providing alternative energy substrate to the aging brain. This therapy leverages the neuroprotective effects of ketone bodies, particularly beta-hydroxybutyrate (BHB), to support mitochondrial function and reduce neurodegeneration across multiple disease states[1].
When administered exogenously, ketone bodies provide an alternative fuel source to glucose:
The brain preferentially oxidizes ketone bodies over glucose, particularly in regions affected by neurodegeneration[2].
Ketone bodies enhance mitochondrial health through:
Beyond energy production, BHB functions as a signaling molecule:
Ketone body therapy has the strongest evidence base in Alzheimer's disease.
Clinical Trials:
| Trial | Intervention | Participants | Outcome |
|---|---|---|---|
| BHB drink study | 30g BHB daily | AD patients | Improved cognition at 2 months[3] |
| Ketogenic diet | Classic KD | MCI patients | Improved memory scores |
| ketone ester | KE vs Placebo | AD patients | Phase 2 completed |
Proposed Benefits in AD:
Ketone therapy in PD shows promise based on:
Preclinical Evidence:
Clinical Evidence:
Preclinical Evidence:
Clinical Status:
Biological Plausibility:
Current Evidence:
Evidence:
| Formulation | Dose | Frequency | Notes |
|---|---|---|---|
| BHB salts | 10-30g | Daily | Most common |
| Ketone ester | 25-50g | Daily | More potent |
| Medium-chain triglycerides | 20-30g | Daily | Precursor to ketones |
| Trial ID | Intervention | Disease | Phase | Status |
|---|---|---|---|---|
| NCT04636524 | BHB drink | AD | 2 | Recruiting |
| NCT05328435 | Ketone ester | PD | 2 | Completed |
| NCT04531085 | KD | ALS | 1 | Completed |
Puchowicz MA, et al. Ketogenic diet as a metabolic therapy for neurodegenerative diseases. Neurochemical Research. 2020. ↩︎
Veech RL. The therapeutic implications of ketone body metabolism. Progress in Lipid Research. 2017. ↩︎
Newport MT, et al. A new way to generate ketone bodies for treating neurological disorders. Neurobiology of Aging. 2015. ↩︎
Tieu K, et al. Beta-hydroxybutyrate rescues mitochondrial respiration and mitigates features of Parkinson disease. Journal of Clinical Investigation. 2003. ↩︎