what kind of world do we live in when an overweight man can write a diet book?
I suppose its no worse than a world where a man raised by an abusive manic-depressive mother and marries a pill-popping alcoholic political radical can write one of the best-selling books of all time dispensing advice on child-rearing.
But seriously, any half-wit should be able to recognize the difference between being overweight because one is muscular and being overweight because one is fat. Most professional and college football players, every professional body builder and most amateurs are significantly "overweight", morbidly "obese" according to blind interpretations of BMI and weight/height charts, but I don't think you'll find a single physician who would rail-on against the health risks of being an athlete with substantially above-average muscle mass.
Dr. Phil has been very athletic since childhood and received a football scholarship to the University of Tulsa. Being 6' 4", he carries 240lb on a very large frame. As you might know, football players are generally not miniscule blowy wafts of the Brad Pitt or Pierce Brosnan variety, who are at considerable risk of being knocked over if someone farts or sneezes too close to them.
Dr. Phil was an avid weight lifter in college and still works-out with weights every day, in addition to running the equivalent of five 9-minute miles on an exercise machine every morning and playing tennis every afternoon. Of course, at 53 years of age, he isn't going to carry that weight quite the same way he did when he was 23.
He also worked with overweight patients for eight years. It wasn't as though he was a marital or relationship counselor his entire career who woke-up one morning and decided to write a weight-loss book.
Medical and weight-loss authorities who have reviewed Dr. Phil's book say the advice is nothing earth-shattering. Its essentially the same sound and common sense advice the medical community has been trying to get people to follow for years without much success because most fat people don't want to lose weight if it means they have to make any changes to those aspects of their lifestyle that made them fat to begin with.
If Dr. Phil has found a way to get a few more people to embrace sound weight-loss advice, more power to him. God knows this society could do with fewer two-ton heffers.