Knocking on Grace’s door this week is the doctor-turned-writer Adam Kay, whose memoir This is Going to Hurt was loved by critics and readers alike, making it the UK’s second-most-sold book in 2018. Adam and Grace discuss the fast pace and poor food of life on a gynaecology ward, his favourite motorway service station snack, and his struggle with disordered eating. And of course, the comfort foods he turns to today