Increasing intakes of vitamin E may decrease the risk of lung cancer by over 50 per cent, according to a new study from the US. Researchers from the University of Texas M.D. Anderson Cancer Center report that intakes of vitamin E in the alpha-tocopherol form were associated with consistent and independent reductions in lung cancer risk. The International Journal of Cancer details an ongoing study involving 1,088 patients with lung cancer (average age 61.7) and 1,414 healthy controls (average age 60.8). Dietary intakes were assessed using a modified version of the 135-item National Cancer Institute’s Health Habits and History Questionnaire Food Frequency Questionnaire. Demographic and lifestyle data were also collected, including smoking habits. The researchers calculated that the highest average intakes of alpha-tocopherol (more than 7.73 mg per day) were associated with a 53 per cent reduction in lung cancer risk, compared to the lowest average intakes (less than 4.13 mg per day). This result took into account the other forms of tocopherols. When the researchers accounted for the other tocopherols they observed no significant associations on lung cancer risk for beta-, gamma, and delta-tocopherol. Considering all the tocopherols together, the highest average intake (more than 12.95 mg per day) was associated with a 55 per cent reduction in the risk of lung cancer, compared to the lowest average intakes (less than 6.68 mg per day), said the researchers.
Bonnie - as opposed to the Prostate study that came out last week, here is a perfect example of a study that investigated natural forms of vitamin E instead of synthetic. The study also took into account all vitamin E tocopherols and tocotrienols, instead of only one of the eight, which is what the prostate study looked into. Of course, this study will get no media exposure.
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