{"entity":{"id":"gerson-therapy-detox-regimens","kind":"technology","name":"Gerson therapy, coffee enemas and 'detox' regimens","aka":[],"tldr":"The Gerson regimen prescribes hourly juices, a strict low-salt vegetarian diet, supplements and several coffee enemas a day, and is sold at clinics in Mexico. It has never shown benefit in any controlled study, and coffee enemas have caused fatal electrolyte disturbances and infections.","summary":"Developed by Max Gerson in the 1930s and promoted for cancer since the 1940s, the regimen claims to detoxify the body and restore metabolism. The NCI PDQ summary finds no controlled trials showing benefit; a 1990s retrospective comparison of melanoma patients from the Gerson Institute lacked a valid control group, and a 2010 prospective study of a related metabolic regimen (Gonzalez, pancreatic enzymes) in pancreatic cancer found survival about a third that of patients on gemcitabine. Coffee enemas have caused deaths from hyponatraemia and hypokalaemia, septicaemia from Campylobacter and amoebae in unpasteurised liver juice, and rectal burns. The regimen is demanding and expensive and, because it usually replaces chemotherapy, is associated with the worse survival seen in alternative-medicine users generally. Alkaline, 'anti-cancer' and juice-cleanse diets share the same lack of evidence without the enema hazards.","status":"negative","asOf":"2026-09-10","wikipedia":"https://en.wikipedia.org/wiki/Gerson_therapy","links":[{"label":"NCI PDQ: Gerson therapy","url":"https://www.cancer.gov/about-cancer/treatment/cam/hp/gerson-pdq"}],"tags":["complementary","supportive-care","evidence:harm"],"related":[],"cancers":["melanoma","pancreatic"],"sections":["supportive-care","nutrition-lifestyle"],"technologies":["alternative-medicine-instead-of-treatment","integrative-oncology"],"targets":[],"drugs":[],"companies":[],"institutions":[],"pathways":[],"terms":["unproven-diet-claims","warburg-effect-diet-claims"],"trials":[],"people":[],"bottlenecks":["b-misinformation"],"keyPapers":[],"journals":[],"dependsOn":[],"notes":[],"principle":"No mechanism; the 'toxins' are undefined and the liver and kidneys do not require enemas or juices to function.","strengths":["Widely known, so evidence-based counselling is possible"],"limitations":["No controlled evidence of benefit","Deaths from electrolyte disturbance and infection","Usually replaces effective treatment"]},"route":"/technologies/gerson-therapy-detox-regimens/","neighbours":{"cancer":[{"id":"melanoma","kind":"cancer","name":"Melanoma","route":"/cancers/melanoma/"},{"id":"pancreatic","kind":"cancer","name":"Pancreatic ductal adenocarcinoma","route":"/cancers/pancreatic/"}],"section":[{"id":"nutrition-lifestyle","kind":"section","name":"Diet, Exercise & Lifestyle","route":"/fronts/nutrition-lifestyle/"},{"id":"supportive-care","kind":"section","name":"Supportive Care & Survivorship","route":"/fronts/supportive-care/"}],"technology":[{"id":"alternative-medicine-instead-of-treatment","kind":"technology","name":"Alternative medicine used instead of standard treatment","route":"/technologies/alternative-medicine-instead-of-treatment/"},{"id":"integrative-oncology","kind":"technology","name":"Evidence-based integrative oncology","route":"/technologies/integrative-oncology/"},{"id":"rejuv-frontier-ozone-therapy","kind":"technology","name":"Ozone therapy","route":"/technologies/rejuv-frontier-ozone-therapy/"}],"term":[{"id":"unproven-diet-claims","kind":"term","name":"Unproven diet claims (alkaline, juice, 'anti-cancer' diets)","route":"/terms/unproven-diet-claims/"},{"id":"warburg-effect-diet-claims","kind":"term","name":"Warburg-effect diet claims ('sugar feeds cancer')","route":"/terms/warburg-effect-diet-claims/"}],"bottleneck":[{"id":"b-misinformation","kind":"bottleneck","name":"Misinformation and unproven therapies","route":"/bottlenecks/b-misinformation/"}]}}