Long-term trials have shown that high intakes of vitamin E reduce the risk of lung cancer in smokers.

Question

Quizplus · Accepted Answer

Although some studies have shown that high intake of vitamin E may have a protective effect against lung cancer in smokers, long-term randomized controlled trials have not shown a consistent benefit. Some trials have even suggested that high doses of vitamin E supplements may be harmful. Therefore, the evidence is currently insufficient to support the claim that high intakes of vitamin E reduce the risk of lung cancer in smokers.

Long-Term Trials Have Shown That High Intakes of Vitamin E