A strict eating plan tested alongside standard glioblastoma treatment
Original title: Intensive multimodal ketogenic metabolic therapy in glioblastoma: A clinical trial.
How far along is this research?
- Lab cells
- Animals
- Review
- Tested in people
This was tested in people. That is the most reliable kind of research we share.
This was a small, early test in people, and it is not standard care yet.
The short version
A strict eating plan was added to usual glioblastoma: The fastest-growing type of glioma (grade 4). Treatment usually starts soon after diagnosis: surgery first, then radiation and chemotherapy. See the glossary treatment, and most people were able to stick with it.
What was studied. Adults with newly diagnosed glioblastoma: The fastest-growing type of glioma (grade 4). Treatment usually starts soon after diagnosis: surgery first, then radiation and chemotherapy. See the glossary got standard radiation and chemotherapy plus a program of fasting, eating only during set hours, and a high fat diet. Of 32 eligible patients, 18 started the program and 15 finished it.
What they found. 15 of 18 patients (83%) hit the blood target the study was aiming for during radiation and chemotherapy. Side effects from the eating program were mild or moderate. People also exercised more and said their quality of life was better. In the program group, the typical time people lived was 21.5 months. In the comparison group it was 14.7 months. At 3 years, 27% of the program group were alive, compared with 7% of the others.
What this means, and what it doesn't
What it could mean: This shows the eating plan can be done during glioblastoma: The fastest-growing type of glioma (grade 4). Treatment usually starts soon after diagnosis: surgery first, then radiation and chemotherapy. See the glossary treatment, and most people handled it. Some results, like quality of life and how long people lived, looked better in this group. If this interests you, ask your care team about it. The plan is strict and needs medical support.
What it doesn't mean: This does not mean the diet treats the tumor or cures glioblastoma: The fastest-growing type of glioma (grade 4). Treatment usually starts soon after diagnosis: surgery first, then radiation and chemotherapy. See the glossary. This was a small, early study. Only 18 people started the program. The comparison group was not picked at random, so the difference in how long people lived could have other causes. This is not standard care, and it is not a promise of more time. Do not try long fasting or big weight loss on your own during treatment.
Source: PubMed, June 29, 2026 · Read the original
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