How can people cut down on food waste?

Food waste is a massive issue, it's estimated up to a third of all food is lost or wasted globally. A recent survey by social group Love Food Hate Waste found 42 percent of left overs aren't used, more than 26 percent of people admitted cooking too much leading to waste and more than 16 percent of people bought more food than they can use. Kate Fenwick from Love Food Hate Waste spoke to Lisa Owen.