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The Ketogenic Diet: A Possible Intervention for Improving Hippocampal Function in Neurological Disorders
Davood Jahanmehr1, Alireza Ahmadi1, Mohammadmahdi Fadaei2
1Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran 1461884513, Iran.
Nutrition Reviews
|November 15, 2025
Summary
The ketogenic diet (KD) shows promise for neurological disorders by influencing brain energy and inflammation, particularly in the hippocampus. Further human trials are needed to confirm long-term benefits for conditions like epilepsy and Alzheimer's disease.
Area of Science:
- Neuroscience
- Metabolic Disorders
- Dietary Interventions
Background:
- The ketogenic diet (KD) is increasingly explored for neurological conditions.
- The hippocampus is a key brain region affected by KD interventions.
- Existing research highlights KD's potential in epilepsy and Alzheimer's disease.
Purpose of the Study:
- To review the emerging role of the ketogenic diet (KD) in treating neurological disorders.
- To examine the mechanisms through which KD influences the hippocampus.
- To assess the therapeutic potential and limitations of KD.
Main Methods:
- Review of animal studies and clinical research on KD and neurological disorders.
- Focus on hippocampal mechanisms including energy metabolism, neurotransmission, and neuroinflammation.
- Analysis of studies emphasizing epilepsy and Alzheimer's disease.
Main Results:
- KD influences the hippocampus via energy metabolism shifts, neurotransmitter modulation, and reduced neuroinflammation.
- Ketones may stabilize neuronal networks and decrease amyloid-beta toxicity.
- Preclinical data suggest enhanced synaptic plasticity and neuroprotection.
Conclusions:
- KD demonstrates therapeutic potential for neurological disorders like epilepsy and Alzheimer's disease.
- Individualized KD application, duration, and timing are crucial for optimal outcomes.
- Further long-term, standardized human trials are necessary to validate findings and address research gaps.

