French weight loss guru, Dr. Pierre Dukan Has written a weight loss book that is rumored to have been emraced by the Middleton family.

(Yahoo) The book outlines a protein-rich, low-fat approach to weight loss. According to The New York Times, there are four phases of the Dukan diet: the first involves a strict menu of non-fatty protein (skinless turkey, chicken breast, low-fat beef, or fish), plus 1.5 tablespoons of oat bran daily and loads of water. In phase two, dieters are introduced to veggies. Phase three, they’re allowed two slices of bread, a serving of cheese and fruit and two servings of carbs a day, with a wine-and-dessert allowance two days a week. In the final phase of the diet, “Dukamaniacs” (as they're dubbed) can eat anything they want, provided they return to phase one’s protein, oat bran, and water regimen one day per week.