COLUMBUS, OHIO — Men who take high doses of vitamin B supplements have a higher risk for lung cancer and the association is greatest among male smokers, according to a new study. <br /> <br />The study, published in the Journal of Clinical Oncology, found male smokers taking the highest levels of vitamin B6 — around 11 times the recommended daily amount — had a 30 percent higher chance of getting lung cancer. <br /> <br />Male smokers taking the highest levels of vitamin B12 — around 23 times the recommended daily amount — showed a 40 percent higher chance of getting lung cancer. <br /> <br />Around 77,000 men and women from Washington state, aged 50 to 76, took part in the study over 10-year periods. <br /> <br />The study found no increased risk of lung cancer in women, or with vitamin B9, also known as folate[c]. <br /> <br />The researchers, from Ohio State University and the National Taiwan University, said most Americans get enough vitamin B in their diets, so there was no need to take supplements, the Independent reported. <br /> <br />The researchers also said there was no need to take high doses of vitamin B, and the best way to prevent lung cancer was to quit smoking.
