A form of vitamin E found in vegetable oils like corn and canola may worsen lung function, a new study suggests.
SummaryDifferent forms of vitamin E may have contrasting effects on health.
A form of vitamin E found in vegetable oils like corn and canola may worsen lung function, while another form typically found in olive oil may protect it, a new study suggests. The findings may help explain why studies of the health effects of the vitamin have had conflicting results.
Vitamin E comes in various forms called tocopherols, commonly found in fats and oils. Supplements of the vitamin may contain a single type of tocopherol, or a mix.
The new research, published in Respiratory Research, found that a form of the vitamin called gamma tocopherol, the kind in corn, canola and soybean oils, was linked to poor lung function in adults. But another form of the vitamin typically found in olive and sunflower oils, called alpha tocopherol, seemed to have a beneficial effect on lungs.
�It�s mind-blowing that there�s this disparity,� said Dr Clifford W Bassett, an allergist and assistant clinical professor of medicine at the New York University School of Medicine. �What�s interesting is that most people taking vitamin E never stop to ask where it�s from.�
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