With recent NHS figures showing that more people than ever before are leaving hospital malnourished, Dispatches reveals the shocking truth about catering in the NHS. Not only is much of the food disgusting, but some patients are having their health put at risk by cost-cutting and sloppy production. Reporter Mark Sparrow spent ten weeks in traction in an British hospital, forced to rely on NHS food. The quality of his meals was so bad that he set up a blog and began to record his experiences. He photographed and filmed dozens of meals. Since he has been released, he has set out to discover whether his experience was a one-off or symptomatic of a deeper problem. If you'd prefer to look at edible food, a new series of Raymond Blanc's Kitchen Secrets starts at 8.30pm on BBC2.