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.