Lower cancer rates among those eating a plant-based diet may be a result of reduced blood levels of IGF-1 and enhanced production of IGF-1 binding protein. Who is Pritikin? See Engineering a Cure. What’s the puzzle? See Ex Vivo Cancer Proliferation Bioassay and Prostate vs. a Plant-Based Diet. What’s the big deal about IGF-1? See IGF-1 as One-Stop Cancer Shop and Cancer-Proofing Mutation. The binding protein findings may explain the conclusion in Is It the Diet, the Exercise, or Both?. As I covered in my full-length 2012 presentation Uprooting the Leading Causes of Death, tomorrow’s video-of-the-day How Plant-Based to Lower IGF-1? will go a level deeper and explore why eating plants lowers IGF-1.