We are probably all aware that countries with the Western lifestyle and the standard Western diet are facing an epidemic of type 2 diabetes. Already in 2010, more than one million people in the UK were thought to have undiagnosed type 2 diabetes, double the previous estimate, and as long ago as 2008 between 20% and 30% of the adult population could be characterised as having the 'metabolic syndrome' - the forerunner to diabetes. The tragedy is that most people with these conditions regard them a