[Jackie07]

Oncology (Williston Park). 2010 Feb;24(2):201.
Gerson regimen.
Cassileth B.
Source
Integrative Medicine, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Abstract
The Gerson regimen, developed by Max Gerson in the 1930s, is promoted as an alternative cancer treatment. It involves consuming fresh, raw fruit and vegetable juices, eliminating salt from the diet, taking supplements such as potassium, vitamin B12, thyroid hormone, pancreatic enzymes, and detoxifying liver with coffee enemas to stimulate metabolism. Gerson therapy is based on the theory that cancer is caused by alteration of cell metabolism by toxic environmental substances and processed food, which changes its sodium and potassium content. It emphasizes increasing potassium intake and minimizing sodium consumption in an effort to correct the electrolyte imbalance, repair tissue, and detoxify the liver. The coffee enemas are believed to cause dilation of bile ducts and excretion of toxic breakdown products by the liver and through the colon wall. None of these theories has been substantiated by scientific research. Despite proponents' claims of recovery rates as high as 70% to 90%, case reviews by the National Cancer Institute (NCI) and the New York County Medical Society found no evidence of usefulness for the Gerson diet. An NCI-sponsored study of Gonzalez therapy, which is similar to the Gerson diet, showed that patients with inoperable pancreatic adenocarcinoma who underwent standard chemotherapy with gemcitabine (Gemzar) survived three times longer and had better quality of life than those who chose enzyme treatment, which included pancreatic enzymes, nutritional supplements, detoxification, and an organic diet.

[Claims made by M. Gerson 32 years ago:
Physiol Chem Phys. 1978;10(5):449-64.
The cure of advanced cancer by diet therapy: a summary of 30 years of clinical experimentation.
Gerson M.
Abstract
Thirty years of clinical experimentation has led to a successful therapy for advanced cancer. This therapy is based on the concepts (1) that cancer patients have low immuno-reactivity and generalized tissue damage, especially of the liver, and (2) that when the cancer is destroyed, toxic degradation products appear in the bloodstream which lead to coma and death from liver failure. The therapy consists of high potassium, low sodium diet, with no fats or oils, and minimal animal proteins. Juices of raw fruits and vegetables and of raw liver provide active oxidizing enzymes which facilitate rehabilitation of the liver. Iodine and niacin supplementation is used. Caffeine enemas cause dilation of bile ducts, which facilitates excretion of toxic cancer breakdown products by the liver and dialysis of toxic products from blood across the colonic wall. The therapy must be used as an integrated whole. Parts of the therapy used in isolation will not be successful. This therapy has cured many cases of advanced cancer.]