Leafy Greens Cut Lung Cancer Risk by 50% (July 2008)

Spanish researchers report that a daily serving of green leafy vegetables rich in flavonoids and vitamins A and C, may cut your risk of lung cancer in half. But don’t think you can just pop a pill and get the same protective benefit: In a second new study, University of Washington scientists founds that people taking vitamin supplements were just as likely to develop lung cancer as those not taking vitamins. In fact, in smokers, certain vitamins actually increased the risk of developing the disease.

Fruit showed no protective benefit against lung cancer, regardless of the level of consumption.