Too much vitamin may triple risk of lung cancer for smokers

[Azain]

 

Taking high doses of vitamin B6 and B12 supplements may increase your risk of lung cancer, especially if you smoke or have smoked in the past  (iStock)

If you think popping a handful of vitamins each day is the key to staying healthy, well, you might be doing it wrong.

In fact, your supplements might actually be putting your health at risk: Taking high doses of vitamin B6 and B12 supplements may increase your risk of lung cancer, especially if you smoke or have smoked in the past, a new study in the Journal for Clinical Oncology suggests.

Researchers recruited over 77,000 people over age 50, and asked them about how often, how much, and for how long they took vitamin B6, B9 (folic acid), and B12 supplements over the 10-year period leading up to the study. They also quizzed them on whether they were a current smoker, a former smoker who quit within 10 years, a former smoker who quit more than 10 years ago, or a never-smoker. Then, they followed up the participants for an average of about 6 years to see how many developed lung cancer.

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