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. The diet forces the body to burn fats rather than carbohydrates.
Ration
| Alcohol | Unsweetened drinks allowed |
| Bread | |
| Cereals | |
| Eggs | |
| Fish | |
| Fruit | Limited |
| Meat and poultry | |
| Milk | |
| Mushrooms | |
| Nuts | |
| Oil and butter | |
| Sauces | Sauces without sugar and starch are allowed (limited) |
| Soft drinks | Unsweetened drinks allowed |
| Sweets | |
| Vegetables | Root vegetables and tubers are limited |