Abstract:Here we describe the results of a novel type of complementary immunotherapy of cancer that is based on a combination of ketogenic diet, administration of an emulsion made of chondroitin sulfate, vitamin D 3 and oleic acid and of a fermented milk and colostrum product. The results here reported are consistent with current knowledge concerning the biological and clinical effects of each one of the elements used in the approach described in this study. Based on our results, we suggest that, among the different approaches to the complementary immunotherapy of cancer, those strategies based on ad-hoc formulated nutritional plans and on food supplements that stimulate the immune system and fight inflammation appear to be most promising. Thus, these approaches are characterized by inherent low toxicity and the possibility to use them in conjunction with conventional anti-cancer therapies targeting cancer cells such as radiation or chemotherapies.