Eating fruit and vegetables regularly may lower the risk of lung cancer.
Research based on 700 people shows that those who ate the most were significantly less likely to develop the disease compared with those who ate the least.

This was true for smokers and non-smokers.

Another study, also presented to the American Thoracic Society, found eating 1½ pieces of fruit or a large tablespoonful of vegetables every day can protect against emphysema and chronic bronchitis.

People who ate the most celery had a 60 per cent lower risk than those who ate the least.

Read more:  http://www.dailymail.co.uk/health/article-1292330/Fruit-veg-cuts-smokers-cancer-risk.html