Book excerpt: Alongside growing scientific evidence supporting the remarkable health benefit of a low-GI diet and the forthcoming publication of the revised Low GI Handbook (previously published as The New Glucose Revolution, more than 1 million copies sold in all editions), a new audience is poised to discover the Shopper's Guide and its comprehensive lists of GI values—the key to unlocking those benefits. Shopper's Guide is the only annually updated book of GI values, featuring up-to-date comprehensive nutritional data on nearly 1,500 foods, with additional information for those following gluten-free diets, shopping lists, and tips for meal planning and dining out. The convenient at-a-glance tables make this the necessary guide for people following the glycemic index to manage conditions such as diabetes, heart disease, or PCOS; to lose weight; or to improve their overall well-being.