I ordered two copies of this book for Christmas gifts after seeing the author on the Ellen show. I was a little disappointed though as many of the recipes call for substitutes for real food items. While I understand this is how the recipes are lower in calories, I guess I am just used to using real food with nutritional content. If you are just into the bottom line of knowing how many calories you eat, then this book would be great for you, but if you aren't a fan of chemicals and preservatives, you might want to look elsewhere!