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Updated: Feb 2, 2026

Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients
Published on: December 18, 2016
Ketogenic diets for drug-resistant epilepsy.
Kirsty J Martin-McGill1, Cerian F Jackson, Rebecca Bresnahan
1Department of Molecular and Clinical Pharmacology, Institute of Translational Medicine, University of Liverpool, Lower Lane, Liverpool, UK, L9 7LJ.
Ketogenic diets (KDs) show promise for reducing seizures in drug-resistant epilepsy, particularly in children. However, evidence quality is low to very low, with significant adverse effects and high dropout rates noted.
Area of Science:
- Neurology
- Dietary Interventions
- Epilepsy Management
Background:
- Ketogenic diets (KDs), high-fat, low-carbohydrate diets, are explored for epilepsy management.
- Currently recommended for drug-resistant epilepsy in children, with growing interest in modified versions (MAD) for adults.
- This review updates evidence on KD efficacy and safety for drug-resistant epilepsy.
Purpose of the Study:
- To assess the effectiveness of ketogenic diets (KDs) in managing drug-resistant epilepsy.
- To review evidence from randomized controlled trials (RCTs) on KD use in epilepsy.
Main Methods:
- Searched multiple databases (Cochrane, MEDLINE, ClinicalTrials.gov) up to April 2017 for RCTs.
- Included randomized or quasi-randomized controlled trials of KDs for drug-resistant epilepsy.
- Two independent reviewers extracted data and assessed study quality; meta-analysis was not possible due to heterogeneity.
Main Results:
- Eleven RCTs (778 participants, mostly children) were included; evidence quality was low to very low.
- Classical 4:1 KD showed seizure freedom rates up to 55% and reduction up to 85% in children.
- Modified Atkins Diet (MAD) showed seizure freedom up to 25% and reduction up to 60% in children; adverse effects were common across all diets.
Conclusions:
- RCTs suggest KDs are promising for epilepsy, but limited studies (especially in adults) and low evidence quality necessitate caution.
- Adverse effects (e.g., gastrointestinal issues) and poor adherence were significant challenges, leading to high dropout rates.
- While KDs remain a valid option for intractable epilepsy, further research, particularly on long-term effects and adult populations, is crucial.
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