According to Mireille Guiliano, author of French Women Don't Get Fat, French women enjoy a phenomenon often referred to as the "french paradox". That is, that despite enjoying a rich diet of bread and pastry and three-course meals all washed down with copious amounts of wine, they stay relatively trim. Presumably it also applies to french men!
Continuing the Gallic theme is the Dukan Diet, devised by french doctor Dr Pierre Dukan. Dr Dukan has apparently worked with over 40,000 patients to successfully lose weight and keep their weight under control.
Have you done your dietary tour de France yet? Let us know whether these diets have worked for you.