London vegan restaurant: a bounty of dining options. Veganism is the more restricted cousin of the vegetarian diet, with vegans excluding meat and eggs, dairy products and other animal-derived products from their diets – and even from other areas of their lives, such as clothing. Veganism has a rich and surprisingly flavourful history, and it’s a history with strong links to London. The first vegan cookbook appeared in London in the early 20th-century, and with an estimated 2% of the UK’s population practising veganism it should come as no surprise that London’s concentrated population has more than a few vegans. It follows, then, that finding a vegan restaurant in London is easy.