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The " ketogenic diet " is a high-fat , adequate-protein , low-carbohydrate diet that in medicine is used mainly to treat hard-to-control ( refractory ) epilepsy in children .
 food: low-carbohydrate diet; disease: epilepsy
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 food: low-carbohydrate diet; disease: epilepsy