UK could feed its entire population from its own land

An analysis by farmer and scholar Simon Fairlie suggests that Britain could easily feed itself within its own borders. But while a diet containing a moderate amount of meat, dairy and eggs would require the use of 11 million hectares of land, a vegan diet would demand a total of just 3 million.
This would enable 15 million hectares of the land now used for farming to be set aside for nature. Alternatively, on a vegan planet, Britain could feed 200 million people. [George Monbiot]