The typical “classical” ketogenic diet, called the “long-chain triglyceride diet” provides 3 to 4 grams of fat for every 1 gram of carbohydrates and protein. In other words, 90% of the calories ingested come from fats. As this type of diet does not provide all the vitamins and minerals found in a more balanced diet, the nutritionist often recommends supplementation with vitamins and minerals. The most important of these are calcium and vitamin D (to prevent bone weakening), B complex vitamins and selenium. This type of diet does not interfere with the medication, but it is normal for the doctor to check whether the medication is free of carbohydrates/sugars.
Several studies have shown that, in many children, the ketogenic diet reduces and/or prevents seizures which cannot be controlled by antiepileptic drugs. On the other hand, more than half of the children who follow this type of diet registered a 50% reduction in the number of seizures, and some of them, between 10-15%, even become seizure-free.