
All iLive content is medically reviewed or fact checked to ensure as much factual accuracy as possible.
We have strict sourcing guidelines and only link to reputable media sites, academic research institutions and, whenever possible, medically peer reviewed studies. Note that the numbers in parentheses ([1], [2], etc.) are clickable links to these studies.
If you feel that any of our content is inaccurate, out-of-date, or otherwise questionable, please select it and press Ctrl + Enter.
Diet for astrocytoma
Medical expert of the article
Last reviewed: 04.07.2025

Astrocytoma of the brain is a tumor prone to rapid and lightning-fast growth, so it should not be ignored under any circumstances. Today, effective methods of treating this disease have been developed, but oncology (and most astrocytomas quickly develop into cancer) is not just a disease, it is a special way of life, in which treatment and special nutrition should be logically combined.
Yes, modern research has shown that certain patient dietary habits can enhance the positive outcome of treatment. [ 1 ], [ 2 ], [ 3 ] A balanced diet, in which fats should be 4 times more than carbohydrates, helps to slow down tumor growth. [ 4 ]
Previously, this diet, called the ketone diet, was effectively used in the treatment of epilepsy in children. [ 5 ], [ 6 ] With the advent of anticonvulsants, the diet has somewhat lost its value in epilepsy, but in recent years it has been actively used as part of adjuvant metabolic therapy in the treatment of glioblastoma and other malignant tumors.
The ketone diet, as a low-carbohydrate diet, forces the body to use fats as an energy source, which, when carbohydrate levels are low, are metabolized in the liver into fatty acids and ketone bodies. The latter are used by the brain as a primary source of nutrition when glucose levels are low. [ 7 ]
Glial cancer cells cannot fully utilize ketone bodies, but tumor growth requires large energy expenditures. Glucose, which was previously used for the tumor's needs, is now present in insufficient quantities, and ketones cannot replace it. It turns out that the patient's body has a full-fledged source of energy (fats), but the tumor does not. In this way, it is possible to avoid anorexia, maintain a person's vital forces (the diet contains a moderate amount of protein, essential vitamins and minerals) and at the same time create unfavorable conditions for tumor growth.
It is clear that it is impossible to cure glioblastoma or any other malignant tumor with diet alone, but if a modified diet complements the therapy, it will make it possible to prolong the patient’s life and somewhat improve its quality.
The ketone diet is believed to stop the proliferation of tumor cells, help cleanse the body of toxic tumor decay products, normalize blood counts, support immunity, and give the patient the strength to fight the disease. The same diet can be prescribed to patients with epileptic seizures.
Like any diet, nutrition for brain astrocytoma involves an adaptation period. You should not immediately give up carbohydrates in the hope of a quick result. You need to get used to a new diet gradually, so as not to further injure your body weakened by the disease.
Food should be as healthy as possible and preferably without synthetic additives that can reduce all efforts to "nothing". A high amount of fat in the diet implies the use of vegetable fat. These are mainly natural unrefined vegetable oils that are added to various dishes. Nuts and legumes are also considered a healthy product for cancer.
Animal fats are not the best diet for cancer, but this does not mean that you need to give up meat as a full source of protein, fish, poultry, eggs, cheeses. These products are the optimal combination of fats and proteins for the ketone diet.
The necessary content of carbohydrates, vitamins and microelements are provided by vegetables, fruits and greens. The only condition is to choose vegetables with a low carbohydrate content (mainly salad vegetables). Fruits and berries, even those with a high sugar content, are usually not high in calories, but they contain a lot of fiber, which inhibits the absorption of carbohydrates in the intestine. This means that they do not pose a danger to cancer patients, but help provide the body with nutrients. You can also drink vegetable and fruit and berry juices, but not store-bought ones, which have added sugar and often preservatives.
Juices for cancer are a special topic. The idea that you can only drink juices and astrocytoma will go away is not supported by doctors. But people believe in the healing power of beetroot [ 8 ], citrus and some other types of juice in relation to cancer. And since juices are not prohibited by the ketone diet, why not test their true power. Moreover, the antitumor effect of citrus juices and their extracts has been proven, so they can be used as auxiliary means in modern oncological therapy. [ 9 ]
So, we have figured out what products can be included in the diet for astrocytoma of the brain, but we do not yet know what cannot be eaten with this pathology. Sugar, bread and flour, pasta, high-carbohydrate vegetables, sweets - these are products whose consumption should be minimized. Canned food, fast food, mayonnaise, ketchup and any other products containing unnatural preservatives, chemical dyes, flavor enhancers should also be removed from the diet. Food should be as natural and healthy as possible.
The ketone diet, despite its benefits, is considered a rather dangerous experiment on your body, so you should not run to it without consulting a doctor. A specialist will tell you what the patient's menu should be, what products must be included in the diet to avoid the side effects of a low-carb diet.