Q. Because you focus on health, do you favour a vegetarian approach?

We’ll refer you to the Banting question above. Vegetarianism is another outlier (although not extreme) approach that suits some people, but not others. For example, a large number of the Indian subcontinent eat a vegetarian diet, based largely on lentils, rice, vegetables and dairy products (most fermented). If you read the fantastic book The Blue Zones, which is about healthy centurions in various rural locations in the world, most of these people eat a vegetarian-based diet most of the time, but you wouldn’t call them vegetarian in the modern sense because on special occasions, they eat meat. We call this moderation - a life approach that we like very much…