This is a high level analysis of the health benefits of low carbohydrate eating. It is not primarily a diet plan to lose weight, but an explanation of all the benefits of sticking to a maximum of 72 grams of carbohydrate a day. Though Drs Allan and Lutz have written for the non specialist reader, the book is complicated to follow in all its detail. However, those who stick at it may well find it persuasive, as I did, in the arguments and research to which it appeals. Low Carbohydrate appears to have remarkable health benefits for avoiding or improving Diabetes, Heart Disease, Gastro Intestinal Disorders and even Cancer. There is an easy to follow everyday plan for units of 12 grams of carbohydrate which the authors term "Bread Units". Six of these a day and you have your carbohydrate maximum. There is a chart as an appendix which is a whole lot easier than the average carb counter booklet. This is an ideal book for those completing a low carb diet who want to understand its medical benefits and carry on cutting the sugars for life. A handy book also to give your doctor, should your physician have any doubts about the science involved!