The German Cancer Society advises against ketogenic diets as a cancer treatment,citing a lack of benefit and meaningful risks based on current scientific reviews.
The idea – starving tumors by drastically reducing sugar intake - has gained traction on social media. But what does the science actually say?
The theory centers on the Warburg Effect: many cancer cells primarily rely on sugar for energy. The logic seems straightforward – no sugar, no tumor growth.
However, tumor metabolism is more complex. Experts at the German Cancer Research Center (DKFZ) emphasize that many cancer cells can adapt, utilizing fats or proteins as alternative energy sources.A diet alone, thus, cannot cure the disease.
Furthermore, restrictive diets like the ketogenic diet can be harmful for cancer patients. They may lead to:
- Nutrient deficiencies
- muscle loss
- Weakened immune function
These side effects can interfere with standard cancer treatments like chemotherapy and radiation, potentially reducing their effectiveness and diminishing a patient’s quality of life.
The German Cancer Society stresses that proven cancer treatments should always be prioritized, guided by a qualified oncologist. Patients considering dietary changes should discuss them with their medical team to ensure they are safe and won’t negatively impact their care.
For more information on understanding blood tests and cancer,a free 25-page PDF report is available from Gesundheitswissen-Aktuell. It explains key lab values, how to interpret results, and when to consider further testing.
