Zarnowska · Nutrients 2020 · narrative review · n=?

Therapeutic Use of the Ketogenic Diet in Refractory Epilepsy: What We Know and What Still Needs to Be Learned.

Cited 125 times in the scientific literature.

Level 5 - mechanism / opinion, no new human data

Narrative review without systematic search methodology or primary clinical data

PubMed 32867258 · doi:10.3390/nu12092616 · record verified 2026-08-30

What was done

This narrative review examined the historical and modern therapeutic application of the ketogenic diet and its modified variants (modified Atkins diet, low-glycemic-index treatment) for refractory epilepsy, discussing metabolic mechanisms and clinical implementation.

What was found

The abstract reports no numerical outcomes, patient counts, or effect sizes. It qualitatively states that the ketogenic diet offers protection against seizures in difficult-to-treat epilepsy, alters biochemical pathways by deriving energy primarily from fat instead of carbohydrates, and restores brain metabolic homeostasis.

Why it matters

Metabolic dietary therapy represents an important non-pharmacologic option for epilepsy management when standard anti-seizure medications fail.

Limits

The abstract provides no empirical data, statistical findings, or description of systematic literature search criteria. Specific implementation barriers and exact mechanisms of action were not quantified or detailed.

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