Eat everything. Concentrate on whole grains. Drink milk. Balance protein with carbohydrates. Avoid processed sugars. Do some exercise. The idea that a diet book making such proposals comes as a pleasant surprise shows just how far afield we’ve gone in the search for new ways to be fit. The only thing new about this diet by the editor-in-chief of Men’s Health is its name, and this, one can presume, is because nowadays, a book simply called “Sensible Eating” wouldn’t sell.