What are the side effects of ketogenic diet in children with epilepsy?
Short and long-term side effects of the Classic Ketogenic Diet in pediatric epilepsy treatment: A systematic review of clinical trials.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Researchers looked at 26 studies to find out what bad things happen to children with epilepsy when they go on a very high-fat, low-carb diet called the Classic Ketogenic Diet. They wanted to help doctors know what to watch for.
Surprising Findings
Side effects are mostly treatable and transient, not a reason to stop treatment
Common perception might be that side effects lead to treatment discontinuation, but this study shows most patients can continue
Practical Takeaways
If your child starts keto, expect GI issues in the first 3 months and plan accordingly (dietitian consultation, symptom management strategies)
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Researchers looked at 26 studies to find out what bad things happen to children with epilepsy when they go on a very high-fat, low-carb diet called the Classic Ketogenic Diet. They wanted to help doctors know what to watch for.
Surprising Findings
Side effects are mostly treatable and transient, not a reason to stop treatment
Common perception might be that side effects lead to treatment discontinuation, but this study shows most patients can continue
Practical Takeaways
If your child starts keto, expect GI issues in the first 3 months and plan accordingly (dietitian consultation, symptom management strategies)
Publication
Journal
Seizure
Year
2025
Authors
Saman Sepehrar, Tahere Sadeghi, Eric Kossoff, Maryam Nikoonia, M. Zarei, M. B. Toosi, Saeedeh Talebi
Related Content
Claims (6)
When children with epilepsy follow a special high-fat diet called the ketogenic diet for more than 3 months, about 44% of them develop stomach problems like constipation, diarrhea, or nausea - these digestive issues are the most common long-term side effects.
Kids with epilepsy who try the classic keto diet often get some side effects like stomach problems or tiredness, but these usually go away or can be fixed easily. This means doctors can adjust the diet for each child to help them stick with it and control their seizures better.
About half of kids with epilepsy who start the classic ketogenic diet get stomach problems like constipation, diarrhea, or nausea in the first 3 months, making it the most common side effect.
About 1 in 4 kids with epilepsy who go on the classic keto diet develop brain-related side effects like headaches or dizziness within the first 3 months, which is the second most common problem they experience.
When kids with epilepsy go on the classic ketogenic diet, most of the side effects they might get can be handled or fixed, and most kids don't have to stop the diet because of really bad side effects.