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What is a Ketogenic Diet for Epileptic Dogs?

Updated: Oct 29


What is a Ketogenic Diet for Epileptic Dogs?


Understanding Canine Epilepsy


Epilepsy is one of the most common chronic neurological conditions in dogs. It causes recurrent, unpredictable seizures due to abnormal bursts of electrical activity in the brain.

Some dogs respond well to anticonvulsant medications such as phenobarbital or levetiracetam. However, around 30% of dogs continue to have seizures despite treatment – a condition known as drug-resistant or refractory epilepsy. This is where nutritional therapy, such as a ketogenic diet for dogs with epilepsy, may offer valuable support.


What Is a Ketogenic Diet for Epileptic Dogs?


A ketogenic diet is a high-fat, moderate-protein, and very low-carbohydrate eating plan designed to shift the body’s metabolism from glucose to fat-derived ketones as its main energy source.


When carbohydrate intake is restricted, the liver converts fats into ketone bodies – including β-hydroxybutyrate (BHB), acetoacetate, and acetone – which circulate in the blood and fuel the brain. This state, known as nutritional ketosis, forms the foundation of the ketogenic diet for dogs with epilepsy.

How Does a Ketogenic Diet Help Dogs with Epilepsy?


The exact mechanisms are still being studied, but research suggests that ketosis can help stabilise brain function and reduce seizures through several key pathways:


  • Improved brain energy metabolism: Ketones provide a steady energy source that prevents fluctuations linked to neuronal instability.


  • Balanced neurotransmitters: Ketosis can influence levels of GABA (calming) and glutamate (excitatory) neurotransmitters, reducing neuronal hyperactivity.


  • Enhanced mitochondrial health: Ketones improve mitochondrial efficiency and reduce oxidative stress, supporting long-term brain resilience.


  • Anti-inflammatory effects: Chronic neuroinflammation is linked to seizure activity, and ketones may reduce this inflammation within the brain.


Clinical studies in both humans and animals indicate that a ketogenic diet for dogs with epilepsy can lower seizure frequency and severity in some cases – particularly when conventional medications alone are not fully effective.


What to Feed on a Ketogenic Diet for Dogs with Epilepsy


A properly formulated canine ketogenic diet is nutritionally complete and tailored to each dog’s needs. The ideal fat-to-protein-plus-carbohydrate ratio typically ranges from 3:1 to 4:1, depending on the dog’s metabolism, weight, and health status.


Core ingredients include:


  • Healthy fats: MCT oil (a direct source of ketones), salmon oil, sardines, olive oil, and grass-fed animal fats.

  • High-quality proteins: Lean meats such as chicken, beef, pork, lamb, or fish – providing essential amino acids without excess carbohydrates.

  • Low-carbohydrate vegetables: Spinach, kale, broccoli, courgette, and green beans for fibre and antioxidants.

  • Essential vitamins and minerals: Calcium, phosphorus, magnesium, zinc, and B-vitamins must be balanced to ensure long-term health.


Because every dog’s metabolic response is different, a customised ketogenic meal plan created by a qualified canine nutritionist is essential.


Why Whole Foods Often Work Better Than Commercial Diets


Many owners find better results using whole, unprocessed ingredients rather than relying solely on commercial kibble. Whole food ketogenic diets allow you to:


  • Control ingredient quality and freshness

  • Avoid artificial additives and fillers

  • Tailor macronutrient ratios precisely

  • Improve palatability and digestibility, especially for sensitive dogs


Some therapeutic formulas, like Purina Pro Plan NeuroCare™, use MCT oil to promote ketosis, but fresh, gently cooked or raw meals often offer superior nutrient availability when formulated correctly.


Safety and Monitoring


Before starting a ketogenic diet for dogs with epilepsy, consult your vet or a qualified canine nutrition professional familiar with metabolic therapy. Important safety steps include:


  • Transition gradually over 1–2 weeks

  • Monitor weight, appetite, and stool quality

  • Schedule regular bloodwork to track liver, kidney, and glucose values

  • Check for potential interactions with antiseizure medications


This diet is not suitable for dogs with pancreatitis, severe liver disease, kidney dysfunction, or those who are underweight or still growing.


The Takeaway


A ketogenic diet for epileptic dogs offers a science-led, natural approach that supports traditional medication by stabilising brain energy, improving mitochondrial function, and reducing inflammation.


While not a cure, it can be a powerful complementary therapy that enhances your dog’s quality of life. Always work with a professional to ensure the diet is safe, balanced, and tailored to your individual dog.

References:


Yudkoff, Marc, et al. "Ketosis and brain handling of glutamate, glutamine, and GABA." Epilepsia 49 (2008): 73-75.


Barker-Haliski, Melissa, and H. Steve White. "Glutamatergic mechanisms associated with seizures and epilepsy." Cold Spring Harbor perspectives in medicine 5.8 (2015): a022863.


Chen, Tsang-Shan, et al. "The role of glutamate receptors in epilepsy." Biomedicines 11.3 (2023): 783.


Doherty, James, and Raymond Dingledine. "The roles of metabotropic glutamate receptors in seizures and epilepsy." Current Drug Targets-CNS & Neurological Disorders 1.3 (2002): 251-260.


Chapman, Astrid G. "Glutamate and epilepsy." The Journal of nutrition 130.4 (2000): 1043S-1045S.


Sarlo, Gabrielle L., Amy Kao, and Kathleen F. Holton. "Investigation of the low glutamate diet as an adjunct treatment for pediatric epilepsy: A pilot randomized controlled trial." Seizure: European Journal of Epilepsy 106 (2023): 138-147.


Yudkoff, Marc, et al. "The ketogenic diet and brain metabolism of amino acids: relationship to the anticonvulsant effect." Annu. Rev. Nutr. 27.1 (2007): 415-430.


Yudkoff, Marc, et al. "Ketogenic diet, brain glutamate metabolism and seizure control." Prostaglandins, leukotrienes and essential fatty acids 70.3 (2004): 277-285.


Zhang, Yifan, et al. "The anticonvulsant effects of ketogenic diet on epileptic seizures and potential mechanisms." Current neuropharmacology 16.1 (2018): 66-70.


Olson, Christine A., et al. "The gut microbiota mediates the anti-seizure effects of the ketogenic diet." Cell 173.7 (2018): 1728-1741.


Symes, John B. "Food intolerance, epilepsy, and" the GARD"[glutamate-aspartate restricted diet]." (2007): 66-68.


Symes, John B. "Idiopathic epilepsy-the dietary solution." (2008): 88-90.


Schmidt, Teresa, et al. "Urinary neurotransmitter patterns are altered in canine epilepsy." Frontiers in veterinary science 9 (2022): 893013.


Verdoodt, Fien, et al. "The role of nutrition in canine idiopathic epilepsy management: Fact or fiction?." The Veterinary Journal 290 (2022): 105917.


Schmidt, T., Meller, S., Meyerhoff, N., Twele, F., Zanghi, B., & Volk, H. A. (2023). STUDY PROTOCOL.


Vendramini, Thiago HA, et al. "Ketogenic diets: A systematic review of current scientific evidence and possible applicability in dogs and cats." Journal of Animal Physiology and Animal Nutrition 108.2 (2024): 541-556.


Peek, Saskia I., et al. "Epilepsy is more than a simple seizure disorder: Parallels between human and canine cognitive and behavioural comorbidities." The Veterinary Journal 303 (2024): 106060.


Coates, Joan R., and Robert L. Bergman. "Seizures in young dogs and cats: pathophysiology and diagnosis." seizure 5 (2005): 18.


Bough, K.J.; Gudi, K.; Han, F.T.; Rathod, A.H.; Eagles, D.A. An anticonvulsant profile of the ketogenic diet in the rat. Epilepsy Res., 2002, 50(3), 313-325.


Melø, T.M., Nehlig, A., Sonnewald, U., 2006. Neuronal-glial interactions in rats fed a ketogenic diet. Neurochemistry International 48, 498-507.


Maalouf, M.; Sullivan, P.G.; Davis, L.; Kim, D.Y.; Rho, J.M. Ke- tones inhibit mitochondrial production of reactive oxygen species production following glutamate excitotoxicity by increasing NADH oxidation. Neuroscience, 2007, 145(1), 256-264.


Erecinska M, Nelson D, Daikhin Y, Yudkoff M. Regulation of GABA level in rat brain synaptosomes: fluxes through enzymes of the GABA shunt and effects of glutamate, calcium and ketone bodies. J Neurochem. 1996; 67:2325–34.


Juge, N., Gray, J.A., Omote, H., Miyaji, T., Inoue, T., Hara, C., Uneyama, H., Edwards, R.H., Nicoll, R.A., Moriyama, Y., 2010. Metabolic control of vesicular glutamate transport and release. Neuron 68, 99-112.


Tanner, G.R.; Lutas, A.; Martínez-François, J.R.; Yellen, G. Single K ATP channel opening in response to action potential firing in mouse dentate granule neurons. J. Neurosci., 2011, 31(23), 8689- 8696.

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