Right now, 4.7 million people in the UK are living with diabetes, with the vast majority having Type 2, which is linked to our diet. There's twice the number of people living with diabetes now than there was 20 years ago - and those numbers keep on rising. In this episode, Anna Richardson talks to Dr Alex Miras, a consultant endocrinologist at HCA Healthcare UK’s London Bridge Hospital about what we need to know about diabetes and what we can do to prevent it. We also hear how bariatric surgery can help to change the way we think about hunger.