Instruct: Classify Amazon reviews into positive or negative sentiment
Query: good workout - bad diet

On a positive note, the very simple workout routine is execellent for someone seeking to tone up - at least the weight lifting routine that is presented. However, the author only recommends 5 minutes of cardio a day which is not nearly enough.The nutritional information that is provided in this book is definitely not sound for someone looking for a healthy, life-long diet. With all of the artificial sweeteners, dairy products, and suppliments recommended, the practitioner of this diet is, at the best, going to have some serious digestion problems.Last, as many other people have mentioned, there is absolutely no information given on stretching given by the author.