My dad has a glioblastoma (brain cancer). Will the ketogenic diet help?
Dear Dr. Tan,
Help! My dad was recently diagnosed with brain cancer . It is called a glioblastoma. I was told he has some options but the prognosis isn't good regardless of what he does. I was researching on ketogenic diets and found your trial on clinical trials.gov. https://clinicaltrials.gov/ct2/show/NCT01716468
Do you have the results of your trial published somewhere?
Is the ketogenic diet worth pursuing? Do you have any resources which I can read about on previous trials? Was wondering how effective it is in previous cases of brain cancer like his.
Also, can you please refer me to someone who can advise us on how to do this diet properly? Thank you.
Worried son in Pennsylvania
Dear Worried Son,
I am sorry to hear about your dad's glioblastoma diagnosis. Brain cancer comes in different forms, and grades. The glioblastoma type (also known as grade 4 astrocytoma) is unfortunately the most aggressive type of brain tumor. It is difficult to remove completely by surgery, and relapses early even with aggressive treatment (chemotherapy and radiation).
Compared to tumors from other organs, the brain appears to be highly dependent on carbohydrates as a source of energy. The ketogenic diet limits carbohydrates is already being used as a treatment for seizures. It also happens to be very effective. Studies however are only beginning to emerge in human brain cancer. We still don't have substantial evidence of effectiveness in humans but there is emerging evidence based on scientific work on animal experiments and in the laboratory. https://www.barrowneuro.org/research/research-programs/brain-tumor-research-center/scheck-laboratory/tapping-the-ketogenic-diet-to-fight-brain-cancer-scheck-lab/
I find this to be very exciting.
Our trial did study humans but it focused on safety issues and quality of life. It has already ended and the results were published last year in the journal Nutrion and Metabolism. You can read the original manuscript here. https://nutritionandmetabolism.biomedcentral.com/articles/10.1186/s12986-016-0113-y
Keep in mind, this trial that we completed does not provide data on efficacy. It is mainly a safety and feasibility trial.
In this trial, we recruited 17 patients , all were male and all were US veterans, with a diagnosis of advanced or metastatic solid tumor cancers. It was not a trial for glioblastomas but rather a trial that recruited all sorts of solid tumors. Some of the patients did have a brain tumor diagnosis. We had them all undergo observation while on the Modified Atkins diet. They actually did well, with no significant serious side effects. Although only 4 patients dieted until 4 months and beyond, all patients did achieve some degree of ketosis during the first three days. As far as solid data regarding whether this diet actually helps halt or slow down the growth of brain cancer, or any cancer for that matter, we don't have any solid data other than that seen in animal studies.
I am hopeful that in the near future, many more trials will be completed and give us more evidence that this diet does help in the fight against cancer.
You can read more about the existing evidence and ongoing trials being held elsewhere , in my latest publication. https://www.ketooncologist.com/2017/03/05/ketogenic-diets-cancer/ which is a review article on ketogenic diets and cancer.
Keep in mind, the Modified Atkins diet is a form of ketogenic diet, but they are not exactly the same.
Proportion of carbohydrates, fats and proteins . Different diets for cancer patients.
They differ in the proportions of fats, protein and carbohydrates. One thing for sure, the carbohydrate proportion is indeed low! As far as a qualified nutritionist, I suggest that you first get in touch with your hospital or oncologist's clinic. They can probably refer you to one. Most ketogenic diet oriented nutritionists however are based in childrens hospitals, where the ketogenic diet is currently being used for the treatment of seizures. Unfortunately it still is not considered a standard diet for glioblastoma patients.
Hope this helps.
KetoOnc

