Dr. Glenn's question-and-answer explication of his low-fat regimen will appeal to serious dieters and, perhaps, masochists who enjoy a firm hand. ""No!"" and ""Absolutely not!"" occur often and there's no pussyfootin'. The diets -- several are given for various age groups and desired weight loss -- stress rigid quantities (you don't ""make up"" an item the next meal; just try to stop putting things in your mouth!), offer a fair choice of protein and vegetables and allow ice cream now and then. Glenn points out the pitfalls in ""dietetic"" foods -- dietetic ice cream has as high a fat content as regular, and non-milk lighteners have ""considerably more calories than real milk."" And there's no such thing as spot reducing. Seems a sensible plan for long-term dieting and weight maintenance -- but it's as tough as those nails you'll be ready to eat at the end of one week.