What is so simple as eating an apple? And yet, what could be more sacred or profound? Food is our most intimate and telling connection both with the natural order and with our cultural heritage. But it is increasingly clear that the choices we make about food today are leading to environmental degradation, enormous human health problems, and unimaginable cruelty toward our fellow creatures.

The World Peace Diet presents the outlines of a more empowering understanding of our world, based on comprehending the far-reaching implications of our food choices. Incorporating systems...