Junk Food and the Latest Health Trends

Editor and columnist Raymond Sokolov. His new book is "Why We Eat What We Eat: How the Encounter Between the New World and the Old Changed the Way Everyone on the Planet Eats." (published by Summit Books) His premise is that Christopher Columbus initiated a worldwide culinary revolution when he discovered the New World. Sokolov is the editor of the Leisure & Arts page of "The Wall Street Journal," a columnist for "Natural History" magazine, and a contributor to "Food and Wine" magazine. (Interview by Marty Moss-Coane).

Investigative journalist Michael Moss's 2013 book, Salt Sugar Fat, explored food companies' aggressive marketing of those products and their impact on our health. In his new book, Hooked, Moss updates the food giants' efforts to keep us eating what they serve — and how they're responding to complaints from consumers and health advocates.

Our modern fruits, grains and vegetables aren't nearly as nutrition-packed as their wild counterparts were thousands of years ago, says health writer Jo Robinson.