A big step backward to the extremely low-calorie, low-carbohydrate, high-protein crash diets. The author's claim is a 10-pound loss in 4 days of 1000-calorie-and-under meals (breakfast, every day: Â« grapefruit, black coffee or tea)--to ""streamline your shape in less than a week!"" The breathless diet-guide chatter serves to pad out the two pages that the actual regimen takes up. There is day-by-day encouragement and cheerleading; it's suggested that exercise will help speed results even more; and note is finally taken that any real weight loss will have to come with a more balanced, long-term diet--plus revision of old eating habits. Danbrot also cautions rabid dieters against using her regimen more than once every four weeks. Except possibly as a psychological boost before beginning a real weight-loss program, this is not a help--any weight lost will be rapidly regained. But sell it may.