Note At publication, off-the-shelf foods used in this book were widely available in most supermarkets. But food products come and go. So if there is a frozen entrée or soup selection in this diet that is out of stock, or that's been discontinued, or perhaps you don't like, or that you forgot to pick up while shopping, please substitute another food that has approximately the same caloric value and nutritional content. In addition, frozen entrée and soup ingredients sometimes are changed by the manufacturer without notice and without changing the product's name but the calorie count may have been increased or decreased. So make sure you check the calories noted on the food or soup container, and if the calorie value is different than shown in this book make an allowance for the calorie difference or substitute another frozen entrée or soup. In this regard, many dieters have found the many frozen foods and soups listed in the Appendices at the end of this book to be helpful.