Nabhan takes us on a culinary odyssey to solve the puzzles posed by "the ghosts of evolution" hidden within every culture and its traditional cuisine. Travelling with Nabhan from Java and Bali to Crete and Sardinia, to Hawaii and Mexico, we learn how various ethnic cuisines formerly protected their traditional consumers from both infectious and nutrition-related diseases. We also bear witness to the tragic consequences of the loss of traditional foods, from adult-onset diabetes running rampant among 100 million indigenous peoples to the historic rise in heart disease among individuals of northern European descent.