An Instant New York Times Bestseller From Johns Hopkins medical expert Dr. Marty Makary, the New York Times-bestselling author of The Price We Pay-an eye-opening look at the medical groupthink that has led to public harm, and what you need to know about your health. More Americans have peanut allergies today than at any point in history. Why? In 2000, the American Academy of Pediatrics issued a strict recommendation that parents avoid giving their children peanut products until they're three years old. Getting the science perfectly backward, triggering intolerance with lack of early exposure, the US now leads the world in peanut allergies-and this misinformation is still rearing its head today. How could the experts have gotten it so wrong? Dr. Marty Makary asks,