The Mediterranean diet, developed in the 1950s as a result of Ancel Keys' studies in Southern Italy, now appears to be a distant memory. A BBC investigation uncovered a stark paradox: Italy has one of the highest rates of childhood obesity in Europe, with peaks of more than 40% among children from Campania. According to Professor Valter Longo (USC Longevity Institute), today's diet is dominated by the so-called "five Ps" (pizza, pasta, potatoes, protein, and bread), with little vegetable consumption and an abundance of ultra-processed foods and sugary drinks. Compounding the problem is a lack of understanding among families, who frequently mistake excess weight for excellent health. To combat the phenomenon, after Italy recognized obesity as a chronic disease in 2025, Longo launched a trial in Campania: a "fasting-mimicking diet" program for 300 adolescents to initiate a true metabolic reset.