A neurological disorder of recurrent seizures from abnormal brain electrical activity. The ketogenic diet has decades of evidence for drug-resistant epilepsy, particularly in children. Magnesium, taurine, and B6 also support neuronal stability.
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Epilepsy is a neurological disorder characterized by recurrent unprovoked seizures, sudden, uncontrolled electrical disturbances in the brain. Diagnosis requires either two or more unprovoked seizures (more than 24 hours apart), one unprovoked seizure with high risk of recurrence, or epilepsy syndrome diagnosis.
Seizures are classified by onset: Focal (begin in one brain region, formerly called partial) and Generalized (involve both hemispheres from start). Focal seizures may have impaired awareness or remain alert. Generalized include tonic-clonic ("grand mal"), absence ("petit mal"), myoclonic, atonic, and tonic types. Many patients have multiple seizure types.
Causes range from structural (stroke, tumor, traumatic brain injury, cortical malformation, mesial temporal sclerosis) to genetic (channelopathies, syndromes like Dravet) to metabolic, immune (autoimmune encephalitis), and infectious. About 30% remain "unknown etiology." With proper treatment, ~70% of patients become seizure-free; the remaining 30% have drug-resistant epilepsy and may benefit from epilepsy surgery, neurostimulation, or dietary therapy.
Begin in one brain region. May be aware (formerly "simple partial") or have impaired awareness (formerly "complex partial"). May progress to bilateral tonic-clonic. Most common in adults.
Absence: brief staring (children). Myoclonic: sudden brief jerks. Atonic: sudden loss of muscle tone ("drop attacks"). Often part of generalized epilepsy syndromes.
Manifestations depend on brain region involved. Recognize warning signs for safety planning and accurate diagnosis.
Generalized seizures: complete loss of consciousness. Focal seizures with impaired awareness: appear awake but unresponsive. Absence seizures: brief staring spell, often missed.
Stiffening + rhythmic jerking (tonic-clonic). Single body part (focal motor). Sudden brief jerks (myoclonic). Sudden loss of tone (atonic).
Strange smells/tastes, dรฉjร vu, fear, rising abdominal sensation, visual disturbances. Often precede generalized seizure ("aura"). May be sole symptom of focal seizure.
Lip smacking, chewing, fumbling with clothes, repetitive movements. Common in temporal lobe seizures with impaired awareness. Patient unaware.
After tonic-clonic seizure: confusion, headache, muscle soreness, profound fatigue for hours. Slowly returns to baseline. Memory loss for event.
Seizure >5 minutes OR repeated seizures without recovery between. CALL 911 IMMEDIATELY. Brain damage possible. Mortality >10%.
Falls, tongue biting, head trauma. Drowning risk if in water. Burns from cooking. Important safety planning.
Rare but serious complication. Most common in poorly controlled tonic-clonic seizures. Risk reduced by good seizure control, nocturnal monitoring.
CRITICAL, most diagnostic test. Witness account of event (video recording very helpful). Aura, postictal state, frequency, triggers, family history.
Routine EEG (20-40 min); sleep-deprived EEG; ambulatory or video-EEG monitoring. Identifies epileptiform discharges, seizure type, localizes onset.
Looks for structural causes, mesial temporal sclerosis, cortical malformations, tumors, strokes, vascular malformations. 3T MRI with epilepsy protocol.
For pediatric epilepsy, family history, treatment-resistant cases. Identifies channelopathies and syndromes affecting treatment choice.
Ketogenic diet has STRONG evidence for drug-resistant epilepsy. Lifestyle modulates seizure threshold.
Classic ketogenic diet for drug-resistant epilepsy under medical supervision. Otherwise: avoid hypoglycemia, address deficiencies, anti-inflammatory pattern.
Olive oil, avocado, nuts, fatty fish, coconut/MCT oil. If on ketogenic diet, 70-80% calories from fat. Supervised by epilepsy team.
Wild salmon, sardines, mackerel. Omega-3 EPA/DHA. Neuroprotective, anti-inflammatory.
Magnesium, folate, vitamins. Especially important when on antiseizure medications that deplete nutrients.
Avoid skipping meals, hypoglycemia can trigger seizures. Stable blood sugar important except in ketogenic protocols.
Dehydration is a seizure trigger. 2-3 L water daily. Increase in hot weather or with exercise.
Both intoxication and withdrawal trigger seizures. Many antiseizure meds interact. Best to avoid entirely; if drinking, limit strictly.
Reactive hypoglycemia after sugar spikes can trigger seizures. Especially destabilizing. Eliminate sugary drinks and sweets.
Hypoglycemia is seizure trigger. Don't skip breakfast. If trying intermittent fasting, discuss with epilepsy team, may worsen seizures (different from supervised ketogenic).
Excess caffeine, energy drinks can lower seizure threshold. Moderate intake usually okay; avoid stimulant abuse.
Ginkgo, evening primrose, star anise, ephedra can lower seizure threshold or interact with antiseizure meds. Always check with neurologist.
Many antiseizure medications deplete nutrients. Discuss all supplements with epilepsy team, some interact with medications.
| Supplement | Mechanism & Evidence | Suggested Dose | Timing | Notes |
|---|---|---|---|---|
| Magnesium | Stabilizes neuronal membranes. Often deficient. May reduce seizure threshold when deficient. | 400-600mg/day | Evening | Glycinate or malate forms. Evidence stronger for deficient patients. |
| Vitamin D3 | Many antiseizure medications reduce D levels. Universal deficiency. Supports brain health. | 2,000-5,000 IU/day (titrate to 50-80 ng/mL) | With fat meal | Test baseline and annually. Higher doses often needed. |
| Folate (with caution) | Antiseizure meds (especially valproate, phenytoin) reduce folate. Critical for women of childbearing age, prevents birth defects. | 400-1,000mcg methylfolate/day | With food | Higher doses (4-5mg) for women planning pregnancy. Discuss with neurologist. |
| Vitamin B6 (Pyridoxine) | Cofactor for GABA synthesis. Required treatment for pyridoxine-dependent epilepsy. Antiseizure meds may deplete. | 50-200mg/day | With food | HIGH doses (>500mg/day) can cause neuropathy, stay below. |
| Omega-3 (EPA/DHA) | Neuroprotective, anti-inflammatory. Modest evidence for seizure reduction. Supports brain health. | 2,000-3,000mg EPA+DHA/day | With fat meal | May interact with anticoagulants. Discuss with team. |
| L-Carnitine | Especially important with valproic acid (depletes carnitine). May reduce valproate side effects. | 500-2,000mg/day | Empty stomach | Acetyl-L-carnitine for brain effects. Especially with valproate. |
| Taurine | Inhibitory neurotransmitter. Limited but some evidence for seizure reduction. | 500-1,500mg/day | Empty stomach | Generally well-tolerated. Adjunctive role. |
| Vitamin K (for Bone Health) | Many antiseizure meds increase fracture risk via bone metabolism effects. K2 supports bone health. | K2 MK-7 200mcg/day | With fat meal | Pair with vitamin D. DEXA scan to monitor bone density. |
~70% of epilepsy patients become seizure-free with proper treatment. For drug-resistant epilepsy (~30%), comprehensive epilepsy center evaluation may identify surgical or dietary therapy options. Ketogenic diet under medical supervision has strong evidence. Never stop medications abruptly. Address sleep, stress, and triggers as part of comprehensive care.