Any Italian will tell you: pasta is healthy and makes you feel good. But what about spaghetti made from cannabis?

Farmers from southern Italy presenting their wares at a London food festival this week say their hemp pasta, oil and bread won't get you high, but do provide a healthy, tasty alternative to the traditional, wheat variety.

"Hemp food is truly organic," said Marzio Ilario Fiore, 30, whose farm in the Molise region produces hemp oil and flour. "Hemp requires no pesticides, no fertilizers, and only moderate amounts of water."