What diseases can be treated with a ketogenic diet?
Nov 10, 2025
Source: Cainiu Health
Dr. Yang Ziqi
Introduction
There is no such thing as "treating diseases with a ketogenic diet." The ketogenic diet can only help alleviate symptoms of certain conditions and is generally used as an adjunctive therapy for drug-resistant epilepsy, type 2 diabetes, obesity, some neurodegenerative diseases, and polycystic ovary syndrome. By adopting a dietary pattern high in fat, moderate in protein, and very low in carbohydrates, it helps regulate metabolism and support disease management.
There is no such thing as "treating diseases with a ketogenic diet." The ketogenic diet can only assist in improving disease symptoms and is generally used for conditions such as drug-resistant epilepsy, type 2 diabetes, obesity, certain neurodegenerative diseases, and polycystic ovary syndrome (PCOS). By adopting a dietary structure high in fat, moderate in protein, and very low in carbohydrates, it helps regulate metabolism and supports disease management. If ketoacidosis or severe electrolyte imbalances occur during implementation, prompt medical attention is recommended.
1. Drug-resistant epilepsy: Particularly suitable for children and adolescents, the ketogenic diet is effective for seizure types that respond poorly to medication, such as infantile spasms. Ketone bodies help stabilize neuronal electrical activity, reducing both the frequency and severity of seizures. This must be strictly followed under medical supervision.
2. Type 2 diabetes: The diet can lower blood glucose and insulin levels, improve insulin resistance, and help overweight or obese patients reduce their dosage of antidiabetic medications. Blood glucose should be monitored regularly to prevent hypoglycemia caused by dietary changes.
3. Obesity: A high-fat, high-protein diet increases satiety, reduces total calorie intake, and promotes fat breakdown. It also helps preserve muscle mass during weight loss, preventing a decline in basal metabolic rate after weight reduction.
4. Certain neurodegenerative diseases: The ketogenic diet may provide supportive benefits for Alzheimer's disease and Parkinson's disease. Ketone bodies serve as an alternative energy source for the brain, helping reduce neuronal damage and alleviate cognitive decline or motor dysfunction.
5. Polycystic ovary syndrome (PCOS): The diet can help regulate hormone levels, reduce androgen levels, improve menstrual irregularities and hirsutism, and simultaneously reduce body weight and insulin resistance, aiding in the restoration of ovarian function. Long-term adherence and regular monitoring of hormonal markers are required.
When implementing a ketogenic diet, sufficient leafy vegetables should be included to ensure adequate vitamin intake. Healthy fats such as avocados and nuts are recommended, while trans fats should be avoided. Meals should be consumed at consistent daily times to prevent excessive hunger. Regular monitoring of liver and kidney function is essential to ensure dietary safety.
