As food prices rise, what's the best way to reduce your weekly bill at the supermarket? Channel 4 Dispatches conducts a nationwide fruit and veg experiment to find out if you could save money by heading to the market stall, the shop next door, or even just a different branch of the same supermarket down the road. Reporter Tazeen Ahmad investigates the startling rise of supermarket convenience stores, and asks: are we paying a fair price for on-your-doorstep convenience, or are we being taken for a ride? Fruit and veg is being especially hard hit by food price rises, and we're now eating less and less of the good stuff. So what's the government's solution? To get the supermarkets involved. Dispatches looks at the government's plans to encourage the supermarkets to persuade us to eat more healthily. Will its flagship policy really change our eating habits for the better?