For British citizens who want to know what is diabetes, NHS (National Health Service) is their best source for information. The NHS is the U.K.’s public health system responsible for the care of British citizens with diabetes, operating under different names in England, Scotland, Ireland, and Wales while providing the same service to all citizens. With an estimated 2.8 million people suffering from diabetes and another 1 million undiagnosed in the U.K., it is important to know what is diabetes. NHS support services, especially their website (www.nhs.uk), can answer question related to pre-diabetes, type 1, type 2, and gestational diabetes. On their website NHS provides a “Map of Medicine” allowing health care professionals to share with their patients how diabetes symptoms are mapped and the various steps of care necessary. For medical care and appointments the NHS a specific search feature to find the nearest diabetes support.