This video features Dr. William Li and Dr. Jason Fung discussing the surprising science behind preventing and treating cancer, emphasizing the body's natural defense systems. They delve into how diet and lifestyle, including specific foods and intermittent fasting, can activate angiogenesis, stem cells, the microbiome, DNA protection, and immunity to fight disease. The conversation highlights the detrimental effects of sugar and processed foods, the importance of food doses, and the critical role of nutrition in an era where obesity-related cancers are on the rise, urging a shift in medical education and societal perception of food as powerful medicine.