What if your favorite foods no longer existed? In Bread, Wine, Chocolate, award-winning journalist Simran Sethi reveals how the foods we enjoy are endangered by genetic erosion—a slow and steady loss of diversity in what we grow and eat. Shockingly, 95% of the world’s calories now come from only thirty species. Though supermarkets seem to be stocked with endless options, the differences between products are superficial, primarily in flavor and brand. Read an excerpt.