The document discusses sustainable nutrition and the Mediterranean diet. It provides three examples of Italian companies that produce food in a sustainable way: 1) Salumificio Santini produces cured meats like salami and mortadella using pork from local farms. 2) Auricchio is a cheesemaker that has produced provolone cheese using a unique family recipe for over 100 years. 3) Cascina Pizzavacca farm grows and processes local fruits and vegetables into preserves without preservatives or additives.