Vitamin E supplements may raise the risk of lung cancer, doctors have warned.
A study of more than 77,000 people found that taking moderate to high doses of vitamin E led to a "slight but significant" increase in risk of the cancer that kills on Briton every 15 minutes.
Although the link was strongest among smokers, the "anti-ageing" vitamin also appeared to raise the risk of the cancer among non-smokers.
The study is not the first to link vitamin supplements to lung cancer, with previous research showing that beta carotene, a building block of vitamin A, can raise the risk by as much as 18 per cent.
Lung cancer claims more than 33,000 lives a year - the most of any cancer in Britain - with only five per cent of patients still alive five years after diagnosis.
The latest research, carried out at the University of Washington in Seattle, adds to growing evidence that vitamin supplements are a poor substitute to a diet rich in fruit and vegetables.
The researchers monitored the health and vitamin intake of 77,126 men and women between the ages of 50 and 76 for four years, recording how many of them developed lung cancer. By the end of the study, 521 had been diagnosed with the disease, the American Journal of Respiratory Care and Critical Care Medicine reports.
Analysis found unsurprising links between lung cancer risk and smoking, family history of the disease, and age. But in addition to these, they uncovered the unexpected association with vitamin E.
Source - Daily Mail