Fascinating summary of Dr. Kelly's observations with his own patients with cancer as he set out to test T. Colin Campbell's extensive research on the effects of consumption of animal protein on the growth of cancer. This renewed my confidence in the path my husband and I have taken since both receiving cancer diagnoses within the past few years. We started out on the Hallelujah Diet, detailed in Unravel the Mystery by Ann Malkmus, and as for my own Stage 4 non-Hodgkins lymphoma, the nodule on my neck that precipitated my diagnosis went away completely within one year after starting the diet, without receiving any interventions. My husband with aggressive prostate cancer continues to do well also, exceeding the expectations of his oncologist. We haven't followed the vegan diet perfectly, but Dr. Kelly's book has renewed our passion to stick with it and be consistent.