[Spivak]

Giving the benefit of the doubt here, presumably at the end of that book is also a long list of peer-reviewed studies that the author based the book on.

Both the parent comment and the book are essentially distillations of the current scientific knowledge on the effects of fat in a person's diet.

[gadders]

Pretty much all of the first part of the book is footnoted, chapter length disections of poor science in nutrional studies.