I verified influence of diet change, when I succeeded to cure prostate gland cancer via change of thinking, diet and supplements, without any medicaments, operation, or irradiation. I choose course of Martin Jelínek to deepen my knowledge and be able to eruditely give advices and because I have been watching Mgr. Martin Jelínek for several years. I think he is the best nutritional advisor and we also have same opinions on nutrition and holistic medicine. His online course exceeded my expectations regarding range of information. I can warmly recommend it to anybody, who wants to take responsibility for his or her health into own hands and if possible, to avoid doctors whose mistakes and side effects of medicaments are the third most frequent cause of death in U.S. I am sure that I will participate in another extension course.