Vitamin E may increase or decrease the risk of pneumonia depending on smoking and exercise

Feb 17, 2011

Depending on the level of smoking and leisure time exercise, vitamin E supplementation may decrease or increase, or may have no effect, on the risk of pneumonia, according to a study published in Clinical Epidemiology.

In laboratory studies, has influenced the immune system. In several animal studies vitamin E protected against viral and bacterial infections. However, the importance of vitamin E on human infections is not known.

Dr. Harri Hemila and Professor Jaakko Kaprio, of the University of Helsinki, Finland, studied the effect of vitamin E on the risk of pneumonia in the large (Alpha-Tocopherol Beta-Carotene Cancer Prevention Study) which was conducted in Finland between 1985-1993. There were 898 cases of pneumonia among 29,133 participants of the study.

Vitamin E had no overall effect on pneumonia risk. However, vitamin E decreased pneumonia risk by 69% among participants who had the least exposure to smoking and exercised during leisure time. In contrast, vitamin E increased pneumonia risk by 79% among those who had the highest exposure to smoking and did not exercise. Over half of the participants were outside of these two subgroups and vitamin E did not affect their risk of pneumonia. Thus, the beneficial and harmful effects of vitamin E are restricted to fairly small parts of the population. The researchers concluded the role of vitamin E in susceptibility to in physically active nonsmokers warrants further study.

Explore further: Jamaica Senate starts debate on pot decriminalization bill

Provided by University of Helsinki

4.3 /5 (3 votes)
add to favorites email to friend print save as pdf

Related Stories

Some vitamin supplements don't protect against lung cancer

May 21, 2007

A study of more than 75,000 adults found that taking supplemental multivitamins, vitamin C and E and folate do not decrease the risk of lung cancer. The findings are being reported at the American Thoracic Society 2007 International ...

Variant of vitamin D receptor gene linked to melanoma risk

Sep 22, 2008

A new analysis indicates an association between a gene involved in vitamin D metabolism and skin cancer. Published in the November 1, 2008 issue of Cancer, a peer-reviewed journal of the American Cancer Society, the study ...

Recommended for you

Jamaica Senate starts debate on pot decriminalization bill

4 hours ago

Jamaica's Senate on Friday started debating a bill that would decriminalize possession of small amounts of pot and establish a licensing agency to regulate a lawful medical marijuana industry on the island where the drug ...

Can Lean Management improve hospitals?

10 hours ago

Waiting times in hospital emergency departments could be cut with the introduction of Lean Management and Six Sigma techniques according to new research.

Research finds 90 percent of home chefs contaminate food

11 hours ago

If you're gearing up for a big Super Bowl bash, you might want to consult the best food-handling practices before preparing that feast. New research from Kansas State University finds that most home chefs drop the ball on ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.