A nationally recognized nutrition expert tells shoppers exactly what should be going into their carts. The whole foods movement explained how to shop healthfully at the farmers market, but how can families shop smart at Wal-Mart? There is a wealth of information on labels, but most people have no idea that products labeled -trans-fat free- can contain trans-fats or that -all natural- is a meaningless phrase. Readers can bring this handy guide to the...