Cows' milk protein may be the single most significant chemical carcinogen to which humans are exposed.

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.

DURING THE PAST TWO TO THREE DECADES, we have acquired substantial evidence that most chronic diseases in America can be partially attributed to bad nutrition. Expert government panels have said it, the surgeon general has said it and academic scientists have said it. More people die because of the way they eat than by tobacco use, accidents or any other lifestyle or environmental factor.

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.

Good health is about being able to fully enjoy the time we do have. It is about being as functional as possible throughout our entire lives and avoiding crippling, painful and lengthy battles with disease. There are many better ways to die, and to live.

Once people start introducing animal products into their diet, that's when the mischief starts.

Quite simply, the more you substitute plant foods for animal foods, the healthier you are likely to be.