The Ketogenic diet is a now proven, evidence based treatment of refractory epilepsy. the classic ketogenic diet (KD) is based on a ratio of fat to carbohydrate and protein, usually 3:1 or 4:1. Fat is proven long-chain triglycerides. The efficacy of the KD has been proven by many multicenter trials. But, side effects of ketogenic diet therapy is severe. The modified atkins diet (MAD) was designed and investigated at Johns Hopkins Hospital, which aimed to propose a less restrictive dietary treatment that would be more palatable to children and adolescents with less side effects. The MAD consist of a nearly balance diet (60% fat, 30% protein, and 10% carbohydrates by weight), without any restriction on the recommended daily calories. Some literature suggested that the MAD is an effective treatment for refractory epilepsy. But, no randomised controlled study has been tried. the investigators aimed in this prospective study to evaluate the efficacy, safety and tolerability of MAD comparing to KD. The patients were recruited between age 3 to 18 years old with intractable epilepsy. Enrolled patients were randomly assigned to either one of two groups; the KD group and MAD group. The patients were required to attend outpatient clinic after 1, 3month to record their seizure frequency and severity, while their dietary treatment.
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