Il Prof. Umberto Veronesi ha preso posizione pubblicamente a favore del vegetarismo (anche se includente nella dieta anche i pesci). Ecco quanto ha dichiarato:
"L'umanità rischia un effetto a catena distruttivo: esaurimento di energia, di acqua drinking water, food to meet basic food consumption incorrect. In China and India has increased the consumption of meat, as it stops in the West. I do not add up. Six billion people, three billion of beef cattle (each pound of flesh burning 20,000 gallons of water) and 15 billion poultry feed, fuel production from cereals. In a little 'there will be no more food. Wheat, soybeans, rice, corn cost more and go to fatten livestock. We must stop now. Step one: become a vegetarian, or almost. Milk, eggs and fish are more than enough. It will be one of my battles in the Senate "(Corriere della Sera , 20 May).
