Former star nutritionist Pierre Dukan is trying to make a comeback on the social network TikTok. His high-protein diet has notably seduced Kate Middleton, François Hollande or Jennifer Lopez in the 2000s.
Since 2011, his method, based on the consumption at will of foods rich in protein, such as fish, meat or eggs, is increasingly contested. Patients who follow it quickly regain weight as soon as they return to a more conventional diet, and some develop serious eating disorders.