Eating a diet rich in fruit and veg can cut the risk of developing lung cancer.

Smokers in particular can cut their risk but the variety they eat is just as important as the quantity.

Those eating eight or more different types of fruit and veg can reduce their chances of developing epidermoid carcinoma of the lung by up to 23 per cent.

At least eight types a day is key and more beneficial than eating only four a day, says the study compiled by 10 leading cancer research centres across Europe.

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Researchers believe it may be possible to cut the risk by a further four per cent for each new kind of fruit or veg added to the daily diet.