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Ketogenic Diet

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KEY POINTS

  • A ketogenic diet is very high in fat (up to 90% of calories from fat), low in carbohydrates (carbs), and low in protein. With this diet, the body breaks down fat for energy, rather than carbs.
  • This diet has been shown to help treat seizures in children.
  • It is important to work with your child’s healthcare provider and a dietitian to follow the ketogenic diet. This diet does not provide enough vitamins or minerals to stay healthy. It may be dangerous for some children.

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What is a ketogenic diet?

A ketogenic diet is very high in fat (up to 90% of calories from fat), low in carbohydrates (carbs), and low in protein. This combination changes the way energy is used in the body. Carbs, are usually the main source of energy for the body. Carbs get digested quickly and the body changes them easily into blood glucose (sugar) for energy. The body uses insulin to help move glucose from the blood into the cells. With the ketogenic diet, your child’s body breaks down fat instead of glucose for energy. This makes byproducts called ketones. A high level of ketones in the blood (ketosis) may be helpful in treating seizures. There are theories about how and why the diet helps to treat seizures, but no one knows for sure.

While diets such as the Atkins diet are low in carbs and high in fat, the amounts of each are different than the ketogenic diet. Also, protein is not strictly limited in the Atkins diet.

How do I get started?

This diet can be dangerous for some children. If your child’s body does not process fatty acids properly, the body would use its own protein for energy. If this happens, it could quickly lead to coma and death. It is important to work with your child’s healthcare provider and a dietitian to follow the ketogenic diet.

The dietitian will develop specific meal plans based on your child’s age, activity level, and calorie needs. Your child’s meal plan will give the exact amount of each food that your child should eat at each meal. A typical meal includes a small amount of fruit or vegetable, a protein-rich food, and a source of fat such as heavy cream and butter or vegetable oil. The diet cuts out all sweets such as candy, cookies, and desserts. Other carbs such as bread, potatoes, rice, cereals, and pasta are not allowed on the strictest form of the diet, but may be allowed on some forms of the diet.

Your child will slowly transition to the ketogenic diet over several days. A healthcare provider will carefully supervise your child when following this diet. This diet does not provide enough vitamins or minerals to stay healthy. Your child’s provider will prescribe special vitamin and mineral supplements while your child is on this diet.

Common side effects of this diet include weight loss, constipation, increased cholesterol levels, kidney stones and, in girls, changes in menstrual periods.

If you are interested in this diet, talk with your healthcare provider about whether it is right for your child.

Developed by Change Healthcare.
Pediatric Advisor 2022.1 published by Change Healthcare.
Last modified: 2022-02-07
Last reviewed: 2019-07-18
This content is reviewed periodically and is subject to change as new health information becomes available. The information is intended to inform and educate and is not a replacement for medical evaluation, advice, diagnosis or treatment by a healthcare professional.
© 2022 Change Healthcare LLC and/or one of its subsidiaries
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