In the course of my clinic visits, I encountered many parents consulting on the ketogenic diet for epilepsy and asked me if the ketogenic diet was feasible. After many years of clinical experience, many patients with intractable epilepsy cannot completely control their seizures after several drug treatments, they often change from one expert professor to another, and from one drug to another, but the effect is not satisfactory. The side effects produced by the drugs are obvious, such as parents generally report that the child has delayed development, low intelligence and a series of other problems. During the past 20 years of academic discussions and clinical trials at home and abroad, it was found that the ketogenic diet is effective for infantile spasms, LGS, myoclonic standing inability epilepsy, Dravet syndrome, Doose syndrome, epilepsy accompanied by tuberous sclerosis, and epilepsy in which two or more anti-epileptic drugs are not effective. Moreover, the ketogenic diet currently carried out in China is also maturing, and its therapeutic effect has been recognized by epilepsy experts and parents. The dozens of cases I recommended in my clinic at Shanghai Deji Hospital, treated by Dr. Wang Man, ranging from a few months to dozens of years, are often effectively controlled in a short period of time, and some patients have significant EEG changes in a month or so, which should be considered and chosen by our clinicians and families. Currently, ketogenic diet therapy is also being tried for adolescents and adults with refractory epilepsy, but this diet is simplified and processed based on the existing ketogenic diet therapy combined with Chinese dietary habits, reducing the side effects and adverse reactions brought about by the diet, and patients’ adherence and compliance are higher than the original ketogenic diet. At present, under my guidance, this kind of low percentage of ketogenic diet has been carried out for adult patients with refractory epilepsy in Shanghai Deji Hospital, and the oldest patient is 57 years old. The overall control effect of this diet therapy is much greater than the combination of multiple antiepileptic drugs and is still more satisfactory. It is recommended that patients with refractory epilepsy that cannot be treated surgically try a low percentage of ketogenic diet (now commonly referred to as modified Atkins diet for MAD).