One way to identify the optimal human diet, pretty obvious to all but fundamentalist reductionists, is to survey and compare populations as they already exist, and see what they eat and how healthy they are.

Everything in food works together to create health or disease. The more we think that a single chemical characterizes a whole food, the more we stray into idiocy.

Casein [the main protein found in dairy], in fact, is the most 'relevant' chemical carcinogen ever identified; its cancer-producin g effects occur in animals at consumption levels close to normal-striking ly unlike cancer-causing environmental chemicals that are fed to lab animals at a few hundred or even a few thousand times their normal levels of consumption.

A good diet is the most powerful weapon we have against disease and sickness.

No chemical carcinogen is nearly so important in causing human cancer as animal protein.

We now had impressive evidence that low protein intake could markedly decrease enzyme activity and prevent dangerous carcinogen binding to DNA.

I know of nothing else in medicine that can come close to what a plant-based diet can do. In theory, if everyone were to adopt this, I really believe we can cut health care costs by seventy to eighty percent. That's amazing. And it all comes from understanding nutrition, applying nutrition, and just watching the results.