Researchers have discovered that omega-3 fatty acid supplements can protect against exercise-induced bronchoconstriction (EIB) in asthma sufferers, adding to previous studies that have linked the oils with lung health. EIB is a temporary narrowing of the airways that can be triggered by vigorous exercise. An estimated 80 per cent of asthmatics experience the condition.
In the study, researchers randomly assigned capsules with either olive oil or fish oil into the diets of the study participants. Participants receiving fish oil showed improvement in lung function as measured by researchers. The researchers could not identify a specific mechanism to explain the improvement in lung function, but measured changes in a variety of markers that together appeared to contribute.
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