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If the amount of food wasted around the world were reduced by just a quarter there would be enough food to feed everyone on the planet, according to the UN.

Each year 1.3bn tonnes of food, about a third of all that is produced, is wasted, including about 45% of all fruit and vegetables, 35% of fish and seafood, 30% of cereals, 20% of dairy products and 20% of meat. Meanwhile, 795 million people suffer from severe hunger and malnutrition.