Food challenges can be expensive because of the time and expertise involved, Mr. Fenton explained.
But in practice, most doctors are reluctant to use food challenges, Dr. Riedl said.
"Diversification helps us tackle the food challenges that affect global food supply and demand in the future.
I knew that Nadeau had done more than a thousand food challenges and rarely had to use an EpiPen, but I still felt sick with dread.
While India's agricultural problems are part of this bigger global puzzle, in many ways India's food challenges are more entrenched and systemic than those faced elsewhere.
The supermarket shopping model, predicated on super-sized stores, over-consumption, car journeys, ever-growing bills at the till, and putrid waste that we can't keep a lid on, isn't fit to meet 21st-century food challenges.
The anti-GM lobby sees red mist, the pro-GM lobby seemingly wants to roll out the red carpet and others see GM as a red herring, a distraction from other (more easily acceptable) solutions to our huge food challenges.
Tom Andrews, Soil Association national programme manager of Sustainable Food Cities says: "In the absence of national government action, cities are taking on the incredibly serious food challenges that face us all.
