Having watched his presentations and read quite a bit of his online writings (I never did buy his book), I’m calling bullsnot on the bolded bit (which I added). Campbell’s presentations are built around the idea that eating a 100% plant based diet is the best human diet. There are vegans that will insist— in that aggressive vegan way— that Campbell did find all vegan villages in his China Study, and that is false. He did not find any all vegan villages because they don’t exist. A vegan diet is a modern invention, and is only possible because of supplementation and food fortification. I know I write that often here, but I don’t think it can be said too many times.
For further background on the material in the documentary, my research findings (thanks to many graduate students and fellow scholars), gathered during the last six decades shows that 1) being a carnivore is not in our best interest and 2) genes are not the sole determinant of our health. I’ve repeatedly said “the closer we get to a whole food plant-based diet, the healthier we will likely be”, usually with the added caveat that for best results we should avoid added oil/fat (but not necessarily high fat plant based foods).
Also, I have often added that I know of no scientific evidence that proves that all people need to be 100% WFPB all the time. I prefer saying that going 100% is a “goal”, partly because—if done right—I know of no evidence there will be health problems, only health solutions. I also often say that going 100% WFPB without added oil, if continued for 2-3 months, gradually allows us to wean ourselves from our traditionally high dietary fat and sugar addictions. This allows us to enter a new world of dietary experience and exceptional health, where we gradually lose interest in returning to the old dietary lifestyle.