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Cancer cells take up far more glucose than normal tissue (the Warburg effect, the basis of FDG-PET scans), which leads people to conclude that cutting sugar starves tumours. The biology is real but the conclusion is not: blood glucose is tightly regulated, tumours also burn glutamine, lactate and fat, and no randomised trial shows sugar restriction improves cancer outcomes.
Otto Warburg's observation that tumours favour aerobic glycolysis underpins FDG-PET imaging and legitimate metabolic-therapy research (glutaminase, IDH, PI3K inhibitors). It is also the basis of popular claims that sugar-free, ketogenic or 'anti-cancer' diets can treat cancer. The gap: dietary sugar intake changes blood glucose only transiently in non-diabetics; tumours also use glutamine, lactate, fatty acids and ketones; and randomised evidence for dietary glucose restriction as therapy does not exist outside small feasibility trials. What is supported is avoiding hyperglycaemia and obesity, which raise insulin and IGF-1, and treating diabetes well during cancer therapy. This term exists so the site can link honestly to both the science and the myth.
Showing the technology this term belongs to: Ketogenic diets in glioblastoma.
Shares Ask about diet at diagnosis, and prebunk the myths before the internet does, Unproven diet claims (alkaline, juice, 'anti-cancer' diets), Misinformation and unproven therapies.
Shares Ask about diet at diagnosis, and prebunk the myths before the internet does, Unproven diet claims (alkaline, juice, 'anti-cancer' diets), Misinformation and unproven therapies.
Shares Glycaemic index and glycaemic load, Ultra-processed food and sugar-sweetened drinks, Misinformation and unproven therapies.
Shares ERGO2: ketogenic diet and fasting during re-irradiation of recurrent glioma, Ketogenic diets in glioblastoma.
Shares Hallmark: reprogramming cellular metabolism, ERGO2: ketogenic diet and fasting during re-irradiation of recurrent glioma, Warburg effect, Ketogenic diets in glioblastoma.
Shares Unproven diet claims (alkaline, juice, 'anti-cancer' diets), Diet, exercise and lifestyle roadmap: causes established → interventions that disappointed → exercise proven as treatment, Misinformation and unproven therapies.
Shares Hallmark: reprogramming cellular metabolism, Warburg effect, Metabolic therapy: starving the tumour of a nutrient.
Shares Ask about diet at diagnosis, and prebunk the myths before the internet does, One definitive ketogenic diet trial in glioblastoma, then stop, Unproven diet claims (alkaline, juice, 'anti-cancer' diets), Diet, exercise and lifestyle roadmap: causes established → interventions that disappointed → exercise proven as treatment.