People trying to eat a healthy diet will often head for the fresh produce section when shopping, overlooking the tinned foods. Tins are often considered type of convenience food, rather than being nutritious. But some store cupboard staples can be the healthiest, most affordable foods at the supermarket . That's why reporter Phoebe Cornish set out to find the most nutritious yet budget friendly foods around. She said: "I spoke with six top food and nutrition experts, and their answers revealed