The "Société Française de Gériatrie et Gérontologie" (SFGG) and "Association de Langue Française pour l'Etude du Diabète et des Maladies Métaboliques" (ALFEDIAM) have decided to join their efforts in actions to improve the management and treatment of the elderly diabetic patients. New knowledge brought by the fundamental research in the domains of longevity genes made possible to discover genetic ways, like IGF-1 (insulin-like growth factor 1) which play a regulating role between adequacy of the external food availabilities and nutritional body needs. Others discovery in the field of the epigenetic regulation of the nutrition have consequences on pathology such as the metabolic syndrome. New therapeutic prospects and a better definition of the clinical feature will allow better prevention and management in prediabetic patients.