Rates of diabetes continue to increase rapidly around the world. The current prevalence of about 5.1% is set to rise to 6.3% by 2025 – 333 million people with the condition. Further huge numbers of people are unaware that they have undiscovered diabetes and pre-diabetes conditions. The number of people with impaired glucose tolerance will increase from 314 million to 472 million over the next 15 years or so. These people are at dangerously high risk both for future diabetes complications and early death through cardiovascular disease.