美国西北大学费恩柏格医学院(Feinberg School of Medicine, Northwestern University)进行的研究发现，富含γ-生育酚形式的维生素E食用油可加剧气道炎症反应，增加气道高反应性，甚至诱发哮喘或损害肺功能。数据来自CARDIA观察性研究。作者指出，维生素E的形式不同，对人的健康效应则不同。维生素E在芥花籽油、大豆油和玉米油等油中是以γ-生育酚的形式出现，它降低肺功能。而橄榄油、麦胚油、杏仁油和葵花籽油中的维生素E是α-生育酚形式，效果正好相反，有助于改善肺功能。
学院新闻: Vitamin E in Canola and Other Oils Hurts Lungs
论文长文: http://respiratory-research.com/content/pdf/1465-9921-15-31.pdf
Vitamin E in Canola and Other Oils Hurts Lungs
Increase in asthma coincides with switch from butter to certain oil-based diets
May 20, 2014 | by Marla PaulHIGHLIGHTS
- A form of Vitamin E in soybean, corn and canola oils decreases lung function in humans
- Vitamin E in olive and sunflower oils improves lungs
- U.S. diets have switched from lard and butter to soybean, canola and corn oils
CHICAGO --- A large new Northwestern Medicine® study upends our understanding of vitamin E and ties the increasing consumption of supposedly healthy vitamin E-rich oils -- canola, soybean and corn – to the rising incidence of lung inflammation and, possibly, asthma.
The new study shows drastically different health effects of vitamin E depending on its form. The form of Vitamin E called gamma-tocopherol in the ubiquitous soybean, corn and canola oils is associated with decreased lung function in humans, the study reports. The other form of Vitamin E, alpha-tocopherol, which is found in olive and sunflower oils, does the opposite. It associated with better lung function.
“Considering the rate of affected people we found in this study, there could be 4.5 million individuals in the U.S. with reduced lung function as a result of their high gamma-tocopherol consumption,” said senior author Joan Cook-Mills, an associate professor of medicine in allergy/immunology at Northwestern University Feinberg School of Medicine.
This is the first study to show gamma-tocopherol is associated with worse lung function.
Cook-Mills presented her research in May at the Oxidants and Antioxidants in Biology World Congress. It was also published in the journal Respiratory Research.
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Vitamin E in Canola and Other Oils Hurts Lungs
Increase in asthma coincides with switch from butter to certain oil-based diets
May 20, 2014 | by Marla PaulHIGHLIGHTS
- A form of Vitamin E in soybean, corn and canola oils decreases lung function in humans
- Vitamin E in olive and sunflower oils improves lungs
- U.S. diets have switched from lard and butter to soybean, canola and corn oils
CHICAGO --- A large new Northwestern Medicine® study upends our understanding of vitamin E and ties the increasing consumption of supposedly healthy vitamin E-rich oils -- canola, soybean and corn – to the rising incidence of lung inflammation and, possibly, asthma.
The new study shows drastically different health effects of vitamin E depending on its form. The form of Vitamin E called gamma-tocopherol in the ubiquitous soybean, corn and canola oils is associated with decreased lung function in humans, the study reports. The other form of Vitamin E, alpha-tocopherol, which is found in olive and sunflower oils, does the opposite. It associated with better lung function.
“Considering the rate of affected people we found in this study, there could be 4.5 million individuals in the U.S. with reduced lung function as a result of their high gamma-tocopherol consumption,” said senior author Joan Cook-Mills, an associate professor of medicine in allergy/immunology at Northwestern University Feinberg School of Medicine.
This is the first study to show gamma-tocopherol is associated with worse lung function.
Cook-Mills presented her research in May at the Oxidants and Antioxidants in Biology World Congress. It was also published in the journal Respiratory Research.
Vitamin E in Canola and Other Oils Hurts Lungs
Increase in asthma coincides with switch from butter to certain oil-based diets
May 20, 2014 | by Marla PaulHIGHLIGHTS
- A form of Vitamin E in soybean, corn and canola oils decreases lung function in humans
- Vitamin E in olive and sunflower oils improves lungs
- U.S. diets have switched from lard and butter to soybean, canola and corn oils
CHICAGO --- A large new Northwestern Medicine® study upends our understanding of vitamin E and ties the increasing consumption of supposedly healthy vitamin E-rich oils -- canola, soybean and corn – to the rising incidence of lung inflammation and, possibly, asthma.
The new study shows drastically different health effects of vitamin E depending on its form. The form of Vitamin E called gamma-tocopherol in the ubiquitous soybean, corn and canola oils is associated with decreased lung function in humans, the study reports. The other form of Vitamin E, alpha-tocopherol, which is found in olive and sunflower oils, does the opposite. It associated with better lung function.
“Considering the rate of affected people we found in this study, there could be 4.5 million individuals in the U.S. with reduced lung function as a result of their high gamma-tocopherol consumption,” said senior author Joan Cook-Mills, an associate professor of medicine in allergy/immunology at Northwestern University Feinberg School of Medicine.
This is the first study to show gamma-tocopherol is associated with worse lung function.
Cook-Mills presented her research in May at the Oxidants and Antioxidants in Biology World Congress. It was also published in the journal Respiratory Research.
